Merge pull request #385 from catborise/master

black & isort linter fixes- bug fixes

accounts/apps.py

@@ -8,7 +8,7 @@ def apply_change_password(sender, **kwargs):
     Depending on settings SHOW_PROFILE_EDIT_PASSWORD
     '''
     from django.conf import settings
-    from django.contrib.auth.models import User, Permission
+    from django.contrib.auth.models import Permission, User
     if hasattr(settings, 'SHOW_PROFILE_EDIT_PASSWORD'):
         print('\033[1m! \033[92mSHOW_PROFILE_EDIT_PASSWORD is found inside settings.py\033[0m')
         print('\033[1m* \033[92mApplying permission can_change_password for all users\033[0m')
@@ -29,8 +29,8 @@ def create_admin(sender, **kwargs):
     '''
     Create initial admin user
     '''
-    from django.contrib.auth.models import User
     from accounts.models import UserAttributes
+    from django.contrib.auth.models import User
 
     plan = kwargs.get('plan', [])
     for migration, rolled_back in plan:

accounts/migrations/0001_initial.py

@@ -1,9 +1,8 @@
 # Generated by Django 2.2.10 on 2020-01-28 07:01
-
-from django.conf import settings
 import django.core.validators
-from django.db import migrations, models
 import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):

accounts/templatetags/tags_fingerprint.py

@@ -1,7 +1,8 @@
-from django import template
 import base64
 import hashlib
 
+from django import template
+
 register = template.Library()
 
 

accounts/utils.py

@@ -35,27 +35,27 @@ def validate_ssh_key(key):
         return False
     # unpack the contents of data, from data[:4] , property of ssh key .
     try:
-        str_len = struct.unpack('>I', data[:4])[0]
+        str_len = struct.unpack(">I", data[:4])[0]
     except struct.error:
         return False
     # data[4:str_len] must have string which matches with the typeofkey, another ssh key property.
-    if data[4:4 + str_len] == typeofkey:
+    if data[4 : 4 + str_len] == typeofkey:
         return True
-    else:
+    else: 
         return False
 
 
 def send_email_with_otp(user, device):
     send_mail(
-        _('OTP QR Code'),
-        _('Please view HTML version of this message.'),
+        _("OTP QR Code"),
+        _("Please view HTML version of this message."),
         None,
         [user.email],
         html_message=render_to_string(
-            'accounts/email/otp.html',
+            "accounts/email/otp.html",
             {
-                'totp_url': device.config_url,
-                'user': user,
+                "totp_url": device.config_url,
+                "user": user,
             },
         ),
         fail_silently=False,

accounts/views.py

@@ -23,40 +23,52 @@ def profile(request):
 
     if profile_form.is_valid():
         profile_form.save()
-        messages.success(request, _('Profile updated'))
-        return redirect('accounts:profile')
+        messages.success(request, _("Profile updated"))
+        return redirect("accounts:profile")
 
-    return render(request, "profile.html", {
-        'publickeys': publickeys,
-        'profile_form': profile_form,
-        'ssh_key_form': ssh_key_form,
-    })
+    return render(
+        request,
+        "profile.html",
+        {
+            "publickeys": publickeys,
+            "profile_form": profile_form,
+            "ssh_key_form": ssh_key_form,
+        },
+    )
 
 
 def ssh_key_create(request):
     key_form = UserSSHKeyForm(request.POST or None, user=request.user)
     if key_form.is_valid():
         key_form.save()
-        messages.success(request, _('SSH key added'))
-        return redirect('accounts:profile')
+        messages.success(request, _("SSH key added"))
+        return redirect("accounts:profile")
 
-    return render(request, 'common/form.html', {
-        'form': key_form,
-        'title': _('Add SSH key'),
-    })
+    return render(
+        request,
+        "common/form.html",
+        {
+            "form": key_form,
+            "title": _("Add SSH key"),
+        },
+    )
 
 
 def ssh_key_delete(request, pk):
     ssh_key = get_object_or_404(UserSSHKey, pk=pk, user=request.user)
-    if request.method == 'POST':
+    if request.method == "POST":
         ssh_key.delete()
-        messages.success(request, _('SSH key deleted'))
-        return redirect('accounts:profile')
+        messages.success(request, _("SSH key deleted"))
+        return redirect("accounts:profile")
 
-    return render(request, 'common/confirm_delete.html', {
-        'object': ssh_key,
-        'title': _('Delete SSH key'),
-    })
+    return render(
+        request,
+        "common/confirm_delete.html",
+        {
+            "object": ssh_key,
+            "title": _("Delete SSH key"),
+        },
+    )
 
 
 @superuser_only
@@ -67,13 +79,16 @@ def account(request, user_id):
     publickeys = UserSSHKey.objects.filter(user_id=user_id)
 
     return render(
-        request, "account.html", {
-            'user': user,
-            'user_insts': user_insts,
-            'instances': instances,
-            'publickeys': publickeys,
-            'otp_enabled': settings.OTP_ENABLED,
-        })
+        request,
+        "account.html",
+        {
+            "user": user,
+            "user_insts": user_insts,
+            "instances": instances,
+            "publickeys": publickeys,
+            "otp_enabled": settings.OTP_ENABLED,
+        },
+    )
 
 
 @permission_required("accounts.change_password", raise_exception=True)
@@ -118,7 +133,7 @@ def user_instance_update(request, pk):
 
     return render(
         request,
-        'common/form.html',
+        "common/form.html",
         {
             "form": form,
             "title": _("Update User Instance"),
@@ -150,29 +165,33 @@ def email_otp(request):
     if form.is_valid():
         UserModel = get_user_model()
         try:
-            user = UserModel.objects.get(email=form.cleaned_data['email'])
+            user = UserModel.objects.get(email=form.cleaned_data["email"])
         except UserModel.DoesNotExist:
             pass
         else:
             device = get_user_totp_device(user)
             send_email_with_otp(user, device)
 
-        messages.success(request, _('OTP Sent to %s') % form.cleaned_data['email'])
-        return redirect('accounts:login')
+        messages.success(request, _("OTP Sent to %(email)s") % {"email": form.cleaned_data["email"]})
+        return redirect("accounts:login")
 
-    return render(request, 'accounts/email_otp_form.html', {
-        'form': form,
-        'title': _('Email OTP'),
-    })
+    return render(
+        request,
+        "accounts/email_otp_form.html",
+        {
+            "form": form,
+            "title": _("Email OTP"),
+        },
+    )
 
 
 @superuser_only
 def admin_email_otp(request, user_id):
     user = get_object_or_404(get_user_model(), pk=user_id)
     device = get_user_totp_device(user)
-    if user.email != '':
+    if user.email != "":
         send_email_with_otp(user, device)
-        messages.success(request, _('OTP QR code was emailed to user %s') % user)
+        messages.success(request, _("OTP QR code was emailed to user %(user)s") % {"user": user})
     else:
-        messages.error(request, _('User email not set, failed to send QR code'))
-    return redirect('accounts:account', user.id)
+        messages.error(request, _("User email not set, failed to send QR code"))
+    return redirect("accounts:account", user.id)

admin/forms.py

@@ -1,6 +1,6 @@
 from django import forms
-from django.contrib.auth.models import Group, User
 from django.contrib.auth.forms import ReadOnlyPasswordHashField
+from django.contrib.auth.models import Group, User
 from django.urls import reverse_lazy
 from django.utils.text import format_lazy
 from django.utils.translation import gettext_lazy as _
@@ -13,7 +13,7 @@ from .models import Permission
 class GroupForm(forms.ModelForm):
     permissions = forms.ModelMultipleChoiceField(
         widget=forms.CheckboxSelectMultiple,
-        queryset=Permission.objects.filter(content_type__model='permissionset'),
+        queryset=Permission.objects.filter(content_type__model="permissionset"),
         required=False,
     )
 
@@ -25,12 +25,12 @@ class GroupForm(forms.ModelForm):
 
     def __init__(self, *args, **kwargs):
         super(GroupForm, self).__init__(*args, **kwargs)
-        instance = getattr(self, 'instance', None)
+        instance = getattr(self, "instance", None)
         if instance and instance.id:
-            self.fields['users'].initial = self.instance.user_set.all()
+            self.fields["users"].initial = self.instance.user_set.all()
 
     def save_m2m(self):
-        self.instance.user_set.set(self.cleaned_data['users'])
+        self.instance.user_set.set(self.cleaned_data["users"])
 
     def save(self, *args, **kwargs):
         instance = super(GroupForm, self).save()
@@ -39,36 +39,36 @@ class GroupForm(forms.ModelForm):
 
     class Meta:
         model = Group
-        fields = '__all__'
+        fields = "__all__"
 
 
 class UserForm(forms.ModelForm):
     user_permissions = forms.ModelMultipleChoiceField(
         widget=forms.CheckboxSelectMultiple,
-        queryset=Permission.objects.filter(content_type__model='permissionset'),
-        label=_('Permissions'),
+        queryset=Permission.objects.filter(content_type__model="permissionset"),
+        label=_("Permissions"),
         required=False,
     )
 
     groups = forms.ModelMultipleChoiceField(
         widget=forms.CheckboxSelectMultiple,
         queryset=Group.objects.all(),
-        label=_('Groups'),
+        label=_("Groups"),
         required=False,
     )
 
     class Meta:
         model = User
         fields = [
-            'username',
-            'groups',
-            'first_name',
-            'last_name',
-            'email',
-            'user_permissions',
-            'is_staff',
-            'is_active',
-            'is_superuser',
+            "username",
+            "groups",
+            "first_name",
+            "last_name",
+            "email",
+            "user_permissions",
+            "is_staff",
+            "is_active",
+            "is_superuser",
         ]
 
     def __init__(self, *args, **kwargs):
@@ -76,12 +76,20 @@ class UserForm(forms.ModelForm):
         if self.instance.id:
             password = ReadOnlyPasswordHashField(
                 label=_("Password"),
-                help_text=format_lazy(_("""Raw passwords are not stored, so there is no way to see
-                this user's password, but you can change the password using <a href='{}'>this form</a>."""),
-                reverse_lazy('admin:user_update_password',
-                args=[self.instance.id,]))
+                help_text=format_lazy(
+                    _(
+                        """Raw passwords are not stored, so there is no way to see this user's password, 
+                    but you can change the password using <a href='{}'>this form</a>."""
+                    ),
+                    reverse_lazy(
+                        "admin:user_update_password",
+                        args=[
+                            self.instance.id,
+                        ],
+                    ),
+                ),
             )
-            self.fields['Password'] = password
+            self.fields["Password"] = password
 
 
 class UserCreateForm(UserForm):
@@ -90,20 +98,20 @@ class UserCreateForm(UserForm):
     class Meta:
         model = User
         fields = [
-            'username',
-            'password',
-            'groups',
-            'first_name',
-            'last_name',
-            'email',
-            'user_permissions',
-            'is_staff',
-            'is_active',
-            'is_superuser',
+            "username",
+            "password",
+            "groups",
+            "first_name",
+            "last_name",
+            "email",
+            "user_permissions",
+            "is_staff",
+            "is_active",
+            "is_superuser",
         ]
 
 
 class UserAttributesForm(forms.ModelForm):
     class Meta:
         model = UserAttributes
-        exclude = ['user', 'can_clone_instances']
+        exclude = ["user", "can_clone_instances"]

admin/views.py

@@ -50,7 +50,7 @@ def group_update(request, pk):
     form = forms.GroupForm(request.POST or None, instance=group)
     if form.is_valid():
         form.save()
-        return redirect('admin:group_list')
+        return redirect("admin:group_list")
 
     return render(
         request,
@@ -107,11 +107,7 @@ def user_create(request):
     return render(
         request,
         "admin/user_form.html",
-        {
-            "user_form": user_form,
-            "attributes_form": attributes_form,
-            "title": _("Create User")
-        },
+        {"user_form": user_form, "attributes_form": attributes_form, "title": _("Create User")},
     )
 
 
@@ -124,29 +120,25 @@ def user_update(request, pk):
     if user_form.is_valid() and attributes_form.is_valid():
         user_form.save()
         attributes_form.save()
-        next = request.GET.get('next')
+        next = request.GET.get("next")
         return redirect(next or "admin:user_list")
 
     return render(
         request,
         "admin/user_form.html",
-        {
-            "user_form": user_form,
-            "attributes_form": attributes_form,
-            "title": _("Update User")
-        },
+        {"user_form": user_form, "attributes_form": attributes_form, "title": _("Update User")},
     )
 
 
 @superuser_only
 def user_update_password(request, pk):
     user = get_object_or_404(User, pk=pk)
-    if request.method == 'POST':
+    if request.method == "POST":
         form = AdminPasswordChangeForm(user, request.POST)
         if form.is_valid():
             user = form.save()
             update_session_auth_hash(request, user)  # Important!
-            messages.success(request, _("User password changed: {}".format(user.username)))
+            messages.success(request, _("Password changed for %(user)s") % {"user": user.username})
             return redirect("admin:user_list")
         else:
             messages.error(request, _("Wrong Data Provided"))

appsettings/views.py

@@ -29,13 +29,13 @@ def appsettings(request):
     # Bootstrap settings related with filesystems, because of that they are excluded from other settings
     appsettings = AppSettings.objects.exclude(description__startswith="Bootstrap").order_by("name")
 
-    if request.method == 'POST':
-        if 'SASS_DIR' in request.POST:
+    if request.method == "POST":
+        if "SASS_DIR" in request.POST:
             try:
                 sass_dir.value = request.POST.get("SASS_DIR", "")
                 sass_dir.save()
 
-                msg = _(f"SASS directory path is changed. Now: {sass_dir.value}")
+                msg = _("SASS directory path is changed. Now: %(dir)s") % {"dir": sass_dir.value}
                 messages.success(request, msg)
             except Exception as err:
                 msg = err
@@ -44,7 +44,7 @@ def appsettings(request):
             addlogmsg(request.user.username, "", msg)
             return HttpResponseRedirect(request.get_full_path())
 
-        if 'BOOTSTRAP_THEME' in request.POST:
+        if "BOOTSTRAP_THEME" in request.POST:
             theme = request.POST.get("BOOTSTRAP_THEME", "")
             scss_var = f"@import '{sass_dir.value}/wvc-theme/{theme}/variables';"
             scss_bootswatch = f"@import '{sass_dir.value}/wvc-theme/{theme}/bootswatch';"
@@ -54,15 +54,17 @@ def appsettings(request):
                 with open(sass_dir.value + "/wvc-main.scss", "w") as main:
                     main.write(scss_var + "\n" + scss_boot + "\n" + scss_bootswatch + "\n")
 
-                css_compressed = sass.compile(string=scss_var + "\n" + scss_boot + "\n" + scss_bootswatch,
-                                              output_style='compressed')
+                css_compressed = sass.compile(
+                    string=scss_var + "\n" + scss_boot + "\n" + scss_bootswatch,
+                    output_style="compressed",
+                )
                 with open("static/css/" + main_css, "w") as css:
                     css.write(css_compressed)
 
                 bootstrap_theme.value = theme
                 bootstrap_theme.save()
 
-                msg = _(f"Theme changed. Now: {theme}")
+                msg = _("Theme is changed. Now: %(theme)s") % {"theme": theme}
                 messages.success(request, msg)
             except Exception as err:
                 msg = err
@@ -77,7 +79,7 @@ def appsettings(request):
                     setting.value = request.POST.get(setting.key, "")
                     setting.save()
 
-                    msg = _(f"{setting.name} is changed. Now: {setting.value}")
+                    msg = _("%(setting)s is changed. Now: %(value)s") % {"setting": setting.name, "value": setting.value}
                     messages.success(request, msg)
                 except Exception as err:
                     msg = err
@@ -86,4 +88,4 @@ def appsettings(request):
                 addlogmsg(request.user.username, "", msg)
                 return HttpResponseRedirect(request.get_full_path())
 
-    return render(request, 'appsettings.html', locals())
+    return render(request, "appsettings.html", locals())

computes/urls.py

@@ -1,7 +1,6 @@
 from secrets.views import secrets
 
 from django.urls import include, path
-
 # from instances.views import create_instance, create_instance_select_type
 from interfaces.views import interface, interfaces
 from networks.views import network, networks

computes/validators.py

@@ -1,8 +1,8 @@
-from django.core.exceptions import ValidationError
-
-from django.utils.translation import gettext_lazy as _
 import re
 
+from django.core.exceptions import ValidationError
+from django.utils.translation import gettext_lazy as _
+
 have_symbol = re.compile('[^a-zA-Z0-9._-]+')
 wrong_ip = re.compile('^0.|^255.')
 wrong_name = re.compile('[^a-zA-Z0-9._-]+')

computes/views.py

@@ -1,18 +1,23 @@
 import json
 
-from django.contrib import messages
-from django.http import HttpResponse, HttpResponseRedirect
-from django.shortcuts import get_object_or_404, redirect, render, reverse
+from django.http import HttpResponse
+from django.shortcuts import get_object_or_404, redirect, render
 from django.urls import reverse
 from django.utils import timezone
 from libvirt import libvirtError
 
-from accounts.models import UserInstance
 from admin.decorators import superuser_only
-from computes.forms import (SocketComputeForm, SshComputeForm, TcpComputeForm, TlsComputeForm)
+from computes.forms import SocketComputeForm, SshComputeForm, TcpComputeForm, TlsComputeForm
 from computes.models import Compute
 from instances.models import Instance
-from vrtManager.connection import (CONN_SOCKET, CONN_SSH, CONN_TCP, CONN_TLS, connection_manager, wvmConnect)
+from vrtManager.connection import (
+    CONN_SOCKET,
+    CONN_SSH,
+    CONN_TCP,
+    CONN_TLS,
+    connection_manager,
+    wvmConnect,
+)
 from vrtManager.hostdetails import wvmHostDetails
 
 from . import utils
@@ -25,15 +30,17 @@ def computes(request):
     :return:
     """
 
-    computes = Compute.objects.filter().order_by('name')
+    computes = Compute.objects.filter().order_by("name")
 
-    return render(request, 'computes/list.html', {'computes': computes})
+    return render(request, "computes/list.html", {"computes": computes})
 
 
 @superuser_only
 def overview(request, compute_id):
     compute = get_object_or_404(Compute, pk=compute_id)
-    status = 'true' if connection_manager.host_is_up(compute.type, compute.hostname) is True else 'false'
+    status = (
+        "true" if connection_manager.host_is_up(compute.type, compute.hostname) is True else "false"
+    )
 
     conn = wvmHostDetails(
         compute.hostname,
@@ -49,7 +56,7 @@ def overview(request, compute_id):
     lib_version = conn.get_lib_version()
     conn.close()
 
-    return render(request, 'overview.html', locals())
+    return render(request, "overview.html", locals())
 
 
 @superuser_only
@@ -57,9 +64,9 @@ def instances(request, compute_id):
     compute = get_object_or_404(Compute, pk=compute_id)
 
     utils.refresh_instance_database(compute)
-    instances = Instance.objects.filter(compute=compute).prefetch_related('userinstance_set')
+    instances = Instance.objects.filter(compute=compute).prefetch_related("userinstance_set")
 
-    return render(request, 'computes/instances.html', {'compute': compute, 'instances': instances})
+    return render(request, "computes/instances.html", {"compute": compute, "instances": instances})
 
 
 @superuser_only
@@ -67,9 +74,9 @@ def compute_create(request, FormClass):
     form = FormClass(request.POST or None)
     if form.is_valid():
         form.save()
-        return redirect(reverse('computes'))
+        return redirect(reverse("computes"))
 
-    return render(request, 'computes/form.html', {'form': form})
+    return render(request, "computes/form.html", {"form": form})
 
 
 @superuser_only
@@ -88,22 +95,22 @@ def compute_update(request, compute_id):
     form = FormClass(request.POST or None, instance=compute)
     if form.is_valid():
         form.save()
-        return redirect(reverse('computes'))
+        return redirect(reverse("computes"))
 
-    return render(request, 'computes/form.html', {'form': form})
+    return render(request, "computes/form.html", {"form": form})
 
 
 @superuser_only
 def compute_delete(request, compute_id):
     compute = get_object_or_404(Compute, pk=compute_id)
-    if request.method == 'POST':
+    if request.method == "POST":
         compute.delete()
-        return redirect('computes')
+        return redirect("computes")
 
     return render(
         request,
-        'common/confirm_delete.html',
-        {'object': compute},
+        "common/confirm_delete.html",
+        {"object": compute},
     )
 
 
@@ -126,17 +133,19 @@ def compute_graph(request, compute_id):
         mem_usage = conn.get_memory_usage()
         conn.close()
     except libvirtError:
-        cpu_usage = {'usage': 0}
-        mem_usage = {'usage': 0}
+        cpu_usage = {"usage": 0}
+        mem_usage = {"usage": 0}
         current_time = 0
 
-    data = json.dumps({
-        'cpudata': cpu_usage['usage'],
-        'memdata': mem_usage,
-        'timeline': current_time,
-    })
+    data = json.dumps(
+        {
+            "cpudata": cpu_usage["usage"],
+            "memdata": mem_usage,
+            "timeline": current_time,
+        }
+    )
     response = HttpResponse()
-    response['Content-Type'] = "text/javascript"
+    response["Content-Type"] = "text/javascript"
     response.write(data)
     return response
 
@@ -163,14 +172,14 @@ def get_compute_disk_buses(request, compute_id, arch, machine, disk):
         disk_device_types = conn.get_disk_device_types(arch, machine)
 
         if disk in disk_device_types:
-            if disk == 'disk':
-                data['bus'] = sorted(disk_device_types)
-            elif disk == 'cdrom':
-                data['bus'] = ['ide', 'sata', 'scsi']
-            elif disk == 'floppy':
-                data['bus'] = ['fdc']
-            elif disk == 'lun':
-                data['bus'] = ['scsi']
+            if disk == "disk":
+                data["bus"] = sorted(disk_device_types)
+            elif disk == "cdrom":
+                data["bus"] = ["ide", "sata", "scsi"]
+            elif disk == "floppy":
+                data["bus"] = ["fdc"]
+            elif disk == "lun":
+                data["bus"] = ["scsi"]
     except libvirtError:
         pass
 
@@ -193,7 +202,7 @@ def get_compute_machine_types(request, compute_id, arch):
             compute.password,
             compute.type,
         )
-        data['machines'] = conn.get_machine_types(arch)
+        data["machines"] = conn.get_machine_types(arch)
     except libvirtError:
         pass
 
@@ -217,7 +226,7 @@ def get_compute_video_models(request, compute_id, arch, machine):
             compute.password,
             compute.type,
         )
-        data['videos'] = conn.get_video_models(arch, machine)
+        data["videos"] = conn.get_video_models(arch, machine)
     except libvirtError:
         pass
 
@@ -241,8 +250,8 @@ def get_dom_capabilities(request, compute_id, arch, machine):
             compute.password,
             compute.type,
         )
-        data['videos'] = conn.get_disk_device_types(arch, machine)
-        data['bus'] = conn.get_disk_device_types(arch, machine)
+        data["videos"] = conn.get_disk_device_types(arch, machine)
+        data["bus"] = conn.get_disk_device_types(arch, machine)
     except libvirtError:
         pass
 

conf/runit/secret_generator.py

@@ -1,4 +1,5 @@
-import random, string
+import random
+import string
 
 haystack = string.ascii_letters + string.digits + string.punctuation
 print(''.join([random.SystemRandom().choice(haystack.replace('/', '').replace('\'', '').replace('\"', '')) for _ in range(50)]))

console/sshtunnels.py

@@ -4,14 +4,13 @@
 # See the COPYING file in the top-level directory.
 
 import functools
+import logging as log
 import os
 import queue
-import socket
 import signal
+import socket
 import threading
 
-import logging as log
-
 
 class _TunnelScheduler(object):
     """

console/views.py

@@ -6,7 +6,11 @@ from libvirt import libvirtError
 from appsettings.settings import app_settings
 from instances.models import Instance
 from vrtManager.instance import wvmInstance
-from webvirtcloud.settings import WS_PUBLIC_HOST, WS_PUBLIC_PATH, WS_PUBLIC_PORT
+from webvirtcloud.settings import (
+    WS_PUBLIC_HOST,
+    WS_PUBLIC_PATH,
+    WS_PUBLIC_PORT,
+)
 
 
 def console(request):
@@ -61,7 +65,7 @@ def console(request):
         if console_type is None:
             console_error = "Fail to get console. Please check the console configuration of your VM."
         else:
-            console_error = f"Console type: {console_type} no support"
+            console_error = "Console type '%(type)s' has not support" % {"type": console_type}
         response = render(request, "console-vnc-lite.html", locals())
 
     response.set_cookie("token", token)

datasource/urls.py

@@ -1,4 +1,5 @@
 from django.urls import path
+
 from . import views
 
 urlpatterns = [

datasource/views.py

@@ -1,14 +1,16 @@
 import json
 import socket
+
 from django.shortcuts import render, get_object_or_404
 from django.http import HttpResponse, Http404
 from libvirt import libvirtError
+
 from accounts.models import UserInstance, UserSSHKey
 from computes.models import Compute
 from vrtManager.instance import wvmInstance
 
 
-OS_VERSIONS = ['latest', '']
+OS_VERSIONS = ["latest", ""]
 OS_UUID = "iid-dswebvirtcloud"
 
 
@@ -17,7 +19,7 @@ def os_index(request):
     :param request:
     :return:
     """
-    response = '\n'.join(OS_VERSIONS)
+    response = "\n".join(OS_VERSIONS)
     return HttpResponse(response)
 
 
@@ -28,13 +30,13 @@ def os_metadata_json(request, version):
     :return:
     """
 
-    if version == 'latest':
+    if version == "latest":
         ip = get_client_ip(request)
         hostname = get_hostname_by_ip(ip)
-        response = {'uuid': OS_UUID, 'hostname': hostname}
+        response = {"uuid": OS_UUID, "hostname": hostname}
         return HttpResponse(json.dumps(response))
     else:
-        err = f"Invalid version: {version}"
+        err = "Invalid version: %(version)s" % {"version": version}
         raise Http404(err)
 
 
@@ -44,10 +46,10 @@ def os_userdata(request, version):
     :param version:
     :return:
     """
-    if version == 'latest':
+    if version == "latest":
         ip = get_client_ip(request)
         hostname = get_hostname_by_ip(ip)
-        vname = hostname.split('.')[0]
+        vname = hostname.split(".")[0]
 
         instance_keys = []
         userinstances = UserInstance.objects.filter(instance__name=vname)
@@ -57,9 +59,9 @@ def os_userdata(request, version):
             for k in keys:
                 instance_keys.append(k.keypublic)
 
-        return render(request, 'user_data', locals())
+        return render(request, "user_data", locals())
     else:
-        err = f"Invalid version: {version}"
+        err = "Invalid version: %(version)s" % {"version": version}
         raise Http404(err)
 
 
@@ -68,11 +70,11 @@ def get_client_ip(request):
     :param request:
     :return:
     """
-    x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
+    x_forwarded_for = request.META.get("HTTP_X_FORWARDED_FOR")
     if x_forwarded_for:
-        ip = x_forwarded_for.split(',')[-1].strip()
+        ip = x_forwarded_for.split(",")[-1].strip()
     else:
-        ip = request.META.get('REMOTE_ADDR')
+        ip = request.META.get("REMOTE_ADDR")
     return ip
 
 
@@ -97,16 +99,12 @@ def get_vdi_url(request, compute_id, vname):
     compute = get_object_or_404(Compute, pk=compute_id)
 
     try:
-        conn = wvmInstance(compute.hostname,
-                           compute.login,
-                           compute.password,
-                           compute.type,
-                           vname)
+        conn = wvmInstance(compute.hostname, compute.login, compute.password, compute.type, vname)
 
         fqdn = get_hostname_by_ip(compute.hostname)
         url = f"{conn.get_console_type()}://{fqdn}:{conn.get_console_port()}"
         response = url
         return HttpResponse(response)
     except libvirtError:
-        err = f"Error getting VDI URL for {vname}"
+        err = "Error getting VDI URL for %(name)s" % {"name": vname}
         raise Http404(err)

instances/apps.py

@@ -25,8 +25,8 @@ def apply_passwordless_console(sender, **kwargs):
     '''
     Apply new passwordless_console permission for all users
     '''
-    from django.contrib.auth.models import Permission
     from django.contrib.auth import get_user_model
+    from django.contrib.auth.models import Permission
     User = get_user_model()
     plan = kwargs.get('plan', [])
     for migration, rolled_back in plan:

instances/migrations/0001_initial.py

@@ -1,7 +1,6 @@
 # Generated by Django 2.2.10 on 2020-01-28 07:01
-
-from django.db import migrations, models
 import django.db.models.deletion
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):

instances/migrations/0006_addFlavors.py

@@ -32,4 +32,4 @@ class Migration(migrations.Migration):
 
     operations = [
         migrations.RunPython(add_flavors, del_flavors),
-    ]
+    ]

instances/templates/instances/snapshots_tab.html

@@ -19,7 +19,7 @@
         <div class="tab-content">
             <div role="tabpanel" class="tab-pane tab-pane-bordered active" id="takesnapshot">
                 {% if instance.status == 5 %}
-                    <p>{% trans "This may take more than an hour, depending on how much content is on your droplet and how large the disk is." %}</p>
+                    <p>{% trans "This may take more than an hour, depending on how much content is on your instance and how large the disk is." %}</p>
                     <form action="{% url 'instances:snapshot' instance.id %}" class="form-inline" method="post" role="form" aria-label="Create snapshot form">
                         {% csrf_token %}
                         <div class="form-group row">

instances/templatetags/tags_active.py

@@ -1,6 +1,7 @@
-from django import template
 import re
 
+from django import template
+
 register = template.Library()
 
 

instances/tests.py

@@ -8,12 +8,11 @@ from django.contrib.auth.models import Permission
 from django.http.response import Http404
 from django.shortcuts import reverse
 from django.test import TestCase
+from instances.views import instance
 from libvirt import VIR_DOMAIN_UNDEFINE_NVRAM
 from vrtManager.create import wvmCreate
 from vrtManager.util import randomUUID
 
-from instances.views import instance
-
 from .models import Flavor, Instance
 from .utils import refr
 

interfaces/forms.py

@@ -1,4 +1,5 @@
 import re
+
 from django import forms
 from django.utils.translation import gettext_lazy as _
 

interfaces/views.py

@@ -26,19 +26,30 @@ def interfaces(request, compute_id):
         try:
             netdevs = conn.get_net_devices()
         except:
-            netdevs = ['eth0', 'eth1']
+            netdevs = ["eth0", "eth1"]
 
         for iface in ifaces:
             ifaces_all.append(conn.get_iface_info(iface))
 
-        if request.method == 'POST':
-            if 'create' in request.POST:
+        if request.method == "POST":
+            if "create" in request.POST:
                 form = AddInterface(request.POST)
                 if form.is_valid():
                     data = form.cleaned_data
-                    conn.create_iface(data['name'], data['itype'], data['start_mode'], data['netdev'], data['ipv4_type'],
-                                      data['ipv4_addr'], data['ipv4_gw'], data['ipv6_type'], data['ipv6_addr'],
-                                      data['ipv6_gw'], data['stp'], data['delay'])
+                    conn.create_iface(
+                        data["name"],
+                        data["itype"],
+                        data["start_mode"],
+                        data["netdev"],
+                        data["ipv4_type"],
+                        data["ipv4_addr"],
+                        data["ipv4_gw"],
+                        data["ipv6_type"],
+                        data["ipv6_addr"],
+                        data["ipv6_gw"],
+                        data["stp"],
+                        data["delay"],
+                    )
                     return HttpResponseRedirect(request.get_full_path())
                 else:
                     for msg_err in form.errors.values():
@@ -47,7 +58,7 @@ def interfaces(request, compute_id):
     except libvirtError as lib_err:
         messages.error(request, lib_err)
 
-    return render(request, 'interfaces.html', locals())
+    return render(request, "interfaces.html", locals())
 
 
 @superuser_only
@@ -75,18 +86,18 @@ def interface(request, compute_id, iface):
         bridge = conn.get_bridge()
         slave_ifaces = conn.get_bridge_slave_ifaces()
 
-        if request.method == 'POST':
-            if 'stop' in request.POST:
+        if request.method == "POST":
+            if "stop" in request.POST:
                 conn.stop_iface()
                 return HttpResponseRedirect(request.get_full_path())
-            if 'start' in request.POST:
+            if "start" in request.POST:
                 conn.start_iface()
                 return HttpResponseRedirect(request.get_full_path())
-            if 'delete' in request.POST:
+            if "delete" in request.POST:
                 conn.delete_iface()
-                return HttpResponseRedirect(reverse('interfaces', args=[compute_id]))
+                return HttpResponseRedirect(reverse("interfaces", args=[compute_id]))
         conn.close()
     except libvirtError as lib_err:
         messages.error(request, lib_err)
 
-    return render(request, 'interface.html', locals())
+    return render(request, "interface.html", locals())

logs/models.py

@@ -1,12 +1,11 @@
-from django.db.models import Model, CharField, DateTimeField
+from django.db.models import CharField, DateTimeField, Model
 from django.utils.translation import gettext_lazy as _
 
-
 class Logs(Model):
-    user = CharField(_('user'), max_length=50)
-    instance = CharField(_('instance'), max_length=50)
-    message = CharField(_('message'), max_length=255)
-    date = DateTimeField(_('date'), auto_now=True)
+    user = CharField(_("user"), max_length=50)
+    instance = CharField(_("instance"), max_length=50)
+    message = CharField(_("message"), max_length=255)
+    date = DateTimeField(_("date"), auto_now=True)
 
     def __str__(self):
         return self.instance

logs/urls.py

@@ -1,6 +1,7 @@
 from django.urls import path
+
 from . import views
 
 urlpatterns = [
-    path('vm_logs/<vname>/', views.vm_logs, name='vm_logs'),
+    path("vm_logs/<vname>/", views.vm_logs, name="vm_logs"),
 ]

logs/views.py

@@ -1,8 +1,6 @@
 import json
 
-from django.http import HttpResponse, HttpResponseRedirect
-from django.shortcuts import render
-from django.urls import reverse
+from django.http import HttpResponse
 
 from admin.decorators import superuser_only
 from instances.models import Instance
@@ -29,14 +27,14 @@ def vm_logs(request, vname):
     """
 
     vm = Instance.objects.get(name=vname)
-    logs_ = Logs.objects.filter(instance=vm.name, date__gte=vm.created).order_by('-date')
+    logs_ = Logs.objects.filter(instance=vm.name, date__gte=vm.created).order_by("-date")
     logs = []
     for l in logs_:
         log = dict()
-        log['user'] = l.user
-        log['instance'] = l.instance
-        log['message'] = l.message
-        log['date'] = l.date.strftime('%x %X')
+        log["user"] = l.user
+        log["instance"] = l.instance
+        log["message"] = l.message
+        log["date"] = l.date.strftime("%x %X")
         logs.append(log)
 
     return HttpResponse(json.dumps(logs))

networks/forms.py

@@ -1,15 +1,21 @@
 import re
+
 from django import forms
 from django.utils.translation import gettext_lazy as _
 
 
 class AddNetPool(forms.Form):
-    name = forms.CharField(error_messages={'required': _('No pool name has been entered')},
-                           max_length=20)
-    subnet = forms.CharField(error_messages={'required': _('No IPv4 subnet has been entered')},
-                             max_length=20, required=False)
-    subnet6 = forms.CharField(error_messages={'required': _('No IPv6 subnet has been entered')},
-                              max_length=42, required=False)
+    name = forms.CharField(error_messages={"required": _("No pool name has been entered")}, max_length=20)
+    subnet = forms.CharField(
+        error_messages={"required": _("No IPv4 subnet has been entered")},
+        max_length=20,
+        required=False,
+    )
+    subnet6 = forms.CharField(
+        error_messages={"required": _("No IPv6 subnet has been entered")},
+        max_length=42,
+        required=False,
+    )
     forward = forms.CharField(max_length=100)
     dhcp4 = forms.BooleanField(required=False)
     dhcp6 = forms.BooleanField(required=False)
@@ -18,38 +24,38 @@ class AddNetPool(forms.Form):
     openvswitch = forms.BooleanField(required=False)
 
     def clean_name(self):
-        name = self.cleaned_data['name']
-        have_symbol = re.match('^[a-zA-Z0-9\.\_\-]+$', name)
+        name = self.cleaned_data["name"]
+        have_symbol = re.match(r"^[a-zA-Z0-9\.\_\-]+$", name)
         if not have_symbol:
-            raise forms.ValidationError(_('The pool name must not contain any special characters'))
+            raise forms.ValidationError(_("The pool name must not contain any special characters"))
         elif len(name) > 20:
-            raise forms.ValidationError(_('The pool name must not exceed 20 characters'))
+            raise forms.ValidationError(_("The pool name must not exceed 20 characters"))
         return name
 
     def clean_subnet(self):
-        subnet = self.cleaned_data['subnet']
-        have_symbol = re.match('^[0-9./]+$', subnet if subnet else ".")
+        subnet = self.cleaned_data["subnet"]
+        have_symbol = re.match("^[0-9./]+$", subnet if subnet else ".")
         if not have_symbol:
-            raise forms.ValidationError(_('The IPv4 subnet must not contain any special characters'))
+            raise forms.ValidationError(_("The IPv4 subnet must not contain any special characters"))
         elif len(subnet) > 20:
-            raise forms.ValidationError(_('The IPv4 subnet must not exceed 20 characters'))
+            raise forms.ValidationError(_("The IPv4 subnet must not exceed 20 characters"))
         return subnet
 
     def clean_subnet6(self):
-        subnet = self.cleaned_data['subnet6']
-        have_symbol = re.match('^[0-9a-fA-F:/]+$', subnet if subnet else ":")
+        subnet = self.cleaned_data["subnet6"]
+        have_symbol = re.match("^[0-9a-fA-F:/]+$", subnet if subnet else ":")
         if not have_symbol:
-            raise forms.ValidationError(_('The IPv6 subnet must not contain any special characters'))
+            raise forms.ValidationError(_("The IPv6 subnet must not contain any special characters"))
         elif len(subnet) > 42:
-            raise forms.ValidationError(_('The IPv6 subnet must not exceed 42 characters'))
+            raise forms.ValidationError(_("The IPv6 subnet must not exceed 42 characters"))
         return subnet
 
     def clean_bridge_name(self):
-        bridge_name = self.cleaned_data['bridge_name']
-        if self.cleaned_data['forward'] in ['bridge', 'macvtap']:
-            have_symbol = re.match('^[a-zA-Z0-9\.\_\:\-]+$', bridge_name)
+        bridge_name = self.cleaned_data["bridge_name"]
+        if self.cleaned_data["forward"] in ["bridge", "macvtap"]:
+            have_symbol = re.match(r"^[a-zA-Z0-9\.\_\:\-]+$", bridge_name)
             if not have_symbol:
-                raise forms.ValidationError(_('The pool bridge name must not contain any special characters'))
+                raise forms.ValidationError(_("The pool bridge name must not contain any special characters"))
             elif len(bridge_name) > 20:
-                raise forms.ValidationError(_('The pool bridge name must not exceed 20 characters'))
+                raise forms.ValidationError(_("The pool bridge name must not exceed 20 characters"))
             return bridge_name

networks/views.py

@@ -30,35 +30,37 @@ def networks(request, compute_id):
             compute.type,
         )
         networks = conn.get_networks_info()
-        dhcp4 = netmask4 = gateway4 = ''
-        dhcp6 = prefix6 = gateway6 = ''
+        dhcp4 = netmask4 = gateway4 = ""
+        dhcp6 = prefix6 = gateway6 = ""
         ipv4 = ipv6 = False
 
-        if request.method == 'POST':
-            if 'create' in request.POST:
+        if request.method == "POST":
+            if "create" in request.POST:
                 form = AddNetPool(request.POST)
                 if form.is_valid():
                     data = form.cleaned_data
-                    if data['name'] in networks:
+                    if data["name"] in networks:
                         msg = _("Network pool name already in use")
                         messages.error(request, msg)
                         errors = True
-                    if data['forward'] in ['bridge', 'macvtap'] and data['bridge_name'] == '':
-                        messages.error(request, _('Please enter bridge/dev name'))
+                    if data["forward"] in ["bridge", "macvtap"] and data["bridge_name"] == "":
+                        messages.error(request, _("Please enter bridge/dev name"))
                         errors = True
-                    if data['subnet']:
+                    if data["subnet"]:
                         ipv4 = True
-                        gateway4, netmask4, dhcp4 = network_size(data['subnet'], data['dhcp4'])
-                    if data['subnet6']:
+                        gateway4, netmask4, dhcp4 = network_size(data["subnet"], data["dhcp4"])
+                    if data["subnet6"]:
                         ipv6 = True
-                        gateway6, prefix6, dhcp6 = network_size(data['subnet6'], data['dhcp6'])
-                        if prefix6 != '64':
-                            messages.error(request, _('For libvirt, the IPv6 network prefix must be /64'))
+                        gateway6, prefix6, dhcp6 = network_size(data["subnet6"], data["dhcp6"])
+                        if prefix6 != "64":
+                            messages.error(
+                                request, _("For libvirt, the IPv6 network prefix must be /64")
+                            )
                             errors = True
                     if not errors:
                         conn.create_network(
-                            data['name'],
-                            data['forward'],
+                            data["name"],
+                            data["forward"],
                             ipv4,
                             gateway4,
                             netmask4,
@@ -67,11 +69,13 @@ def networks(request, compute_id):
                             gateway6,
                             prefix6,
                             dhcp6,
-                            data['bridge_name'],
-                            data['openvswitch'],
-                            data['fixed'],
+                            data["bridge_name"],
+                            data["openvswitch"],
+                            data["fixed"],
+                        )
+                        return HttpResponseRedirect(
+                            reverse("network", args=[compute_id, data["name"]])
                         )
-                        return HttpResponseRedirect(reverse('network', args=[compute_id, data['name']]))
                 else:
                     for msg_err in form.errors.values():
                         messages.error(request, msg_err.as_text())
@@ -79,7 +83,7 @@ def networks(request, compute_id):
     except libvirtError as lib_err:
         messages.error(request, lib_err)
 
-    return render(request, 'networks.html', locals())
+    return render(request, "networks.html", locals())
 
 
 @superuser_only
@@ -128,112 +132,119 @@ def network(request, compute_id, pool):
         xml = conn._XMLDesc(0)
     except libvirtError as lib_err:
         messages.error(request, lib_err)
-        return HttpResponseRedirect(reverse('networks', args=compute_id))
+        return HttpResponseRedirect(reverse("networks", args=compute_id))
 
-    if request.method == 'POST':
-        if 'start' in request.POST:
+    if request.method == "POST":
+        if "start" in request.POST:
             try:
                 conn.start()
                 return HttpResponseRedirect(request.get_full_path())
             except libvirtError as lib_err:
                 messages.error(request, lib_err)
-        if 'stop' in request.POST:
+        if "stop" in request.POST:
             try:
                 conn.stop()
                 return HttpResponseRedirect(request.get_full_path())
             except libvirtError as lib_err:
                 messages.error(request, lib_err)
-        if 'delete' in request.POST:
+        if "delete" in request.POST:
             try:
                 conn.delete()
-                return HttpResponseRedirect(reverse('networks', args=[compute_id]))
+                return HttpResponseRedirect(reverse("networks", args=[compute_id]))
             except libvirtError as lib_err:
                 messages.error(request, lib_err)
-        if 'set_autostart' in request.POST:
+        if "set_autostart" in request.POST:
             try:
                 conn.set_autostart(1)
                 return HttpResponseRedirect(request.get_full_path())
             except libvirtError as lib_err:
                 messages.error(request, lib_err)
-        if 'unset_autostart' in request.POST:
+        if "unset_autostart" in request.POST:
             try:
                 conn.set_autostart(0)
                 return HttpResponseRedirect(request.get_full_path())
             except libvirtError as lib_err:
                 messages.error(request, lib_err)
-        if 'modify_fixed_address' in request.POST:
-            name = request.POST.get('name', '')
-            address = request.POST.get('address', '')
-            family = request.POST.get('family', 'ipv4')
+        if "modify_fixed_address" in request.POST:
+            name = request.POST.get("name", "")
+            address = request.POST.get("address", "")
+            family = request.POST.get("family", "ipv4")
 
-            if family == 'ipv4':
-                mac_duid = request.POST.get('mac', '')
-            if family == 'ipv6':
-                mac_duid = request.POST.get('id', '')
+            if family == "ipv4":
+                mac_duid = request.POST.get("mac", "")
+            if family == "ipv6":
+                mac_duid = request.POST.get("id", "")
 
             try:
                 ret_val = conn.modify_fixed_address(name, address, mac_duid, family)
-                messages.success(request, _(f"{family.upper()} Fixed Address Operation Completed."))
+                messages.success(request, _("Fixed address operation completed for %(family)s") % {"family": family.upper()})
                 return HttpResponseRedirect(request.get_full_path())
             except libvirtError as lib_err:
                 messages.error(request, lib_err)
             except ValueError as val_err:
                 messages.error(request, val_err)
-        if 'delete_fixed_address' in request.POST:
-            ip = request.POST.get('address', '')
-            family = request.POST.get('family', 'ipv4')
+        if "delete_fixed_address" in request.POST:
+            ip = request.POST.get("address", "")
+            family = request.POST.get("family", "ipv4")
             conn.delete_fixed_address(ip, family)
-            messages.success(request, _(f"{family.upper()} Fixed Address is Deleted."))
+            messages.success(request, _("%(family)s Fixed Address is Deleted.") % {"family": family.upper()})
             return HttpResponseRedirect(request.get_full_path())
-        if 'modify_dhcp_range' in request.POST:
-            range_start = request.POST.get('range_start', '')
-            range_end = request.POST.get('range_end', '')
-            family = request.POST.get('family', 'ipv4')
+        if "modify_dhcp_range" in request.POST:
+            range_start = request.POST.get("range_start", "")
+            range_end = request.POST.get("range_end", "")
+            family = request.POST.get("family", "ipv4")
             try:
                 conn.modify_dhcp_range(range_start, range_end, family)
-                messages.success(request, _(f"{family.upper()} DHCP Range is Changed."))
+                messages.success(request, _("%(family)s DHCP Range is Changed.") % {"family": family.upper()})
                 return HttpResponseRedirect(request.get_full_path())
             except libvirtError as lib_err:
                 messages.error(request, lib_err)
-        if 'edit_network' in request.POST:
-            edit_xml = request.POST.get('edit_xml', '')
+        if "edit_network" in request.POST:
+            edit_xml = request.POST.get("edit_xml", "")
             if edit_xml:
                 conn.edit_network(edit_xml)
                 if conn.is_active():
-                    messages.success(request, _("Network XML is changed. \\" "Stop and start network to activate new config."))
+                    messages.success(
+                        request,
+                        _(
+                            "Network XML is changed. \\"
+                            "Stop and start network to activate new config."
+                        ),
+                    )
                 else:
                     messages.success(request, _("Network XML is changed."))
                 return HttpResponseRedirect(request.get_full_path())
-        if 'set_qos' in request.POST:
-            qos_dir = request.POST.get('qos_direction', '')
-            average = request.POST.get('qos_average') or 0
-            peak = request.POST.get('qos_peak') or 0
-            burst = request.POST.get('qos_burst') or 0
+        if "set_qos" in request.POST:
+            qos_dir = request.POST.get("qos_direction", "")
+            average = request.POST.get("qos_average") or 0
+            peak = request.POST.get("qos_peak") or 0
+            burst = request.POST.get("qos_burst") or 0
 
             try:
                 conn.set_qos(qos_dir, average, peak, burst)
                 if conn.is_active():
                     messages.success(
                         request,
-                        _(f"{qos_dir.capitalize()} QoS is set. Network XML is changed.") +
-                        _("Stop and start network to activate new config"))
+                        _("%(qos_dir)s QoS is updated. Network XML is changed. Stop and start network to activate new config") % {"qos_dir": qos_dir.capitalize()}
+                    )
                 else:
-                    messages.success(request, _("{} QoS is set").format(qos_dir.capitalize()))
+                    messages.success(request, _("%(qos_dir)s QoS is set") % {"qos_dir": qos_dir.capitalize()})
             except libvirtError as lib_err:
                 messages.error(request, lib_err)
             return HttpResponseRedirect(request.get_full_path())
-        if 'unset_qos' in request.POST:
-            qos_dir = request.POST.get('qos_direction', '')
+        if "unset_qos" in request.POST:
+            qos_dir = request.POST.get("qos_direction", "")
             conn.unset_qos(qos_dir)
 
             if conn.is_active():
                 messages.success(
                     request,
-                    _(f"{qos_dir.capitalize()} QoS is deleted. Network XML is changed. ") +
-                    _("Stop and start network to activate new config."))
+                    _("%(qos_dir)s QoS is deleted. Network XML is changed. \
+                        Stop and start network to activate new config") % {"qos_dir": qos_dir.capitalize()}
+                )
             else:
-                messages.success(request, _(f"{qos_dir.capitalize()} QoS is deleted"))
+                messages.success(request, _("%(qos_dir)s QoS is deleted") % {"qos_dir": qos_dir.capitalize()})
             return HttpResponseRedirect(request.get_full_path())
     conn.close()
 
-    return render(request, 'network.html', locals())
+    return render(request, "network.html", locals())

nwfilters/apps.py

@@ -5,4 +5,4 @@ from django.apps import AppConfig
 
 
 class NwfiltersConfig(AppConfig):
-    name = 'nwfilters'
+    name = "nwfilters"

nwfilters/views.py

@@ -25,48 +25,55 @@ def nwfilters(request, compute_id):
     try:
         conn = wvmNWFilters(compute.hostname, compute.login, compute.password, compute.type)
 
-        if request.method == 'POST':
-            if 'create_nwfilter' in request.POST:
-                xml = request.POST.get('nwfilter_xml', '')
+        for nwf in conn.get_nwfilters():
+            nwfilters_all.append(conn.get_nwfilter_info(nwf))
+
+        if request.method == "POST":
+            if "create_nwfilter" in request.POST:
+                xml = request.POST.get("nwfilter_xml", "")
                 if xml:
                     try:
                         util.etree.fromstring(xml)
-                        name = util.get_xml_path(xml, '/filter/@name')
-                        uuid = util.get_xml_path(xml, '/filter/uuid')
+                        name = util.get_xml_path(xml, "/filter/@name")
+                        uuid = util.get_xml_path(xml, "/filter/uuid")
                     except util.etree.ParseError:
                         name = None
 
-                    for nwf in nwfilters:
-                        if name == nwf.name():
+                    for nwf in nwfilters_all:
+                        if name == nwf["name"]:
                             error_msg = _("A network filter with this name already exists")
                             raise Exception(error_msg)
-                        if uuid == nwf.UUIDString():
+                        if uuid == nwf["uuid"]:
                             error_msg = _("A network filter with this UUID already exists")
                             raise Exception(error_msg)
                     else:
                         try:
-                            msg = _("Creating NWFilter: %s" % name)
+                            msg = _("%(filter)s network filter is created") % {"filter": name}
                             conn.create_nwfilter(xml)
                             addlogmsg(request.user.username, compute.hostname, msg)
                         except libvirtError as lib_err:
                             messages.error(request, lib_err)
                             addlogmsg(request.user.username, compute.hostname, lib_err)
 
-            if 'del_nwfilter' in request.POST:
-                name = request.POST.get('nwfiltername', '')
-                msg = _(f"Deleting NWFilter: {name}")
+            if "del_nwfilter" in request.POST:
+                name = request.POST.get("nwfiltername", "")
+                msg = _("%(filter)s network filter is deleted") % {"filter": name}
                 in_use = False
                 nwfilter = conn.get_nwfilter(name)
 
-                is_conn = wvmInstances(compute.hostname, compute.login, compute.password, compute.type)
+                is_conn = wvmInstances(
+                    compute.hostname, compute.login, compute.password, compute.type
+                )
                 instances = is_conn.get_instances()
                 for inst in instances:
-                    i_conn = wvmInstance(compute.hostname, compute.login, compute.password, compute.type, inst)
+                    i_conn = wvmInstance(
+                        compute.hostname, compute.login, compute.password, compute.type, inst
+                    )
                     dom_filterrefs = i_conn.get_filterrefs()
 
                     if name in dom_filterrefs:
                         in_use = True
-                        msg = _(f"NWFilter is in use by {inst}. Cannot be deleted.")
+                        msg = _("NWFilter is in use by %(instance)s. Cannot be deleted.") % {"instance": inst}
                         messages.error(request, msg)
                         addlogmsg(request.user.username, compute.hostname, msg)
                         i_conn.close()
@@ -77,18 +84,15 @@ def nwfilters(request, compute_id):
                     nwfilter.undefine()
                     addlogmsg(request.user.username, compute.hostname, msg)
 
-            if 'cln_nwfilter' in request.POST:
+            if "cln_nwfilter" in request.POST:
 
-                name = request.POST.get('nwfiltername', '')
-                cln_name = request.POST.get('cln_name', name + '-clone')
+                name = request.POST.get("nwfiltername", "")
+                cln_name = request.POST.get("cln_name", name + "-clone")
 
                 conn.clone_nwfilter(name, cln_name)
-                msg = _(f"Cloning NWFilter {name} as {cln_name}")
+                msg = _("Cloning NWFilter %(name)s as %(clone)s") % {"name":name, "clone": cln_name}
                 addlogmsg(request.user.username, compute.hostname, msg)
 
-        for nwf in conn.get_nwfilters():
-            nwfilters_all.append(conn.get_nwfilter_info(nwf))
-
         conn.close()
     except libvirtError as lib_err:
         messages.error(request, lib_err)
@@ -97,10 +101,14 @@ def nwfilters(request, compute_id):
         messages.error(request, err)
         addlogmsg(request.user.username, compute.hostname, err)
 
-    return render(request, 'nwfilters.html', {
-        'nwfilters': nwfilters_all,
-        'compute': compute,
-    })
+    return render(
+        request,
+        "nwfilters.html",
+        {
+            "nwfilters": nwfilters_all,
+            "compute": compute,
+        },
+    )
 
 
 def nwfilter(request, compute_id, nwfltr):
@@ -114,7 +122,9 @@ def nwfilter(request, compute_id, nwfltr):
     compute = get_object_or_404(Compute, pk=compute_id)
 
     try:
-        nwfilter = wvmNWFilter(compute.hostname, compute.login, compute.password, compute.type, nwfltr)
+        nwfilter = wvmNWFilter(
+            compute.hostname, compute.login, compute.password, compute.type, nwfltr
+        )
         conn = wvmNWFilters(compute.hostname, compute.login, compute.password, compute.type)
 
         for nwf in conn.get_nwfilters():
@@ -126,10 +136,10 @@ def nwfilter(request, compute_id, nwfltr):
         rules = nwfilter.get_rules()
         refs = nwfilter.get_filter_refs()
 
-        if request.method == 'POST':
+        if request.method == "POST":
 
-            if 'edit_nwfilter' in request.POST:
-                new_xml = request.POST.get('edit_xml', '')
+            if "edit_nwfilter" in request.POST:
+                new_xml = request.POST.get("edit_xml", "")
 
                 if new_xml:
                     nwfilter.delete()
@@ -139,10 +149,10 @@ def nwfilter(request, compute_id, nwfltr):
                         conn.create_nwfilter(xml)
                         raise libvirtError(lib_err)
 
-            if 'del_nwfilter_rule' in request.POST:
-                action = request.POST.get('action', '')
-                direction = request.POST.get('direction', '')
-                priority = request.POST.get('priority', '')
+            if "del_nwfilter_rule" in request.POST:
+                action = request.POST.get("action", "")
+                direction = request.POST.get("direction", "")
+                priority = request.POST.get("priority", "")
 
                 new_xml = nwfilter.delete_rule(action, direction, priority)
                 nwfilter.delete()
@@ -152,8 +162,8 @@ def nwfilter(request, compute_id, nwfltr):
                     conn.create_nwfilter(xml)
                     raise libvirtError(lib_err)
 
-            if 'del_nwfilter_ref' in request.POST:
-                ref_name = request.POST.get('ref')
+            if "del_nwfilter_ref" in request.POST:
+                ref_name = request.POST.get("ref")
                 new_xml = nwfilter.delete_ref(ref_name)
                 nwfilter.delete()
                 try:
@@ -162,8 +172,8 @@ def nwfilter(request, compute_id, nwfltr):
                     conn.create_nwfilter(xml)
                     raise libvirtError(lib_err)
 
-            if 'add_nwfilter_rule' in request.POST:
-                rule_xml = request.POST.get('nwfilterrule_xml', '')
+            if "add_nwfilter_rule" in request.POST:
+                rule_xml = request.POST.get("nwfilterrule_xml", "")
                 if not rule_xml:
                     return HttpResponseRedirect(request.get_full_path())
                 new_xml = nwfilter.add_rule(rule_xml)
@@ -174,8 +184,8 @@ def nwfilter(request, compute_id, nwfltr):
                     conn.create_nwfilter(xml)
                     raise libvirtError(lib_err)
 
-            if 'add_nwfilter_ref' in request.POST:
-                ref_name = request.POST.get('nwfilters_select', '')
+            if "add_nwfilter_ref" in request.POST:
+                ref_name = request.POST.get("nwfilters_select", "")
                 if not ref_name:
                     return HttpResponseRedirect(request.get_full_path())
                 new_xml = nwfilter.add_ref(ref_name)
@@ -194,4 +204,4 @@ def nwfilter(request, compute_id, nwfltr):
     except Exception as error_msg:
         messages.error(request, error_msg)
 
-    return render(request, 'nwfilter.html', locals())
+    return render(request, "nwfilter.html", locals())

secrets/views.py

@@ -5,8 +5,14 @@ from computes.models import Compute
 from django.contrib import messages
 from django.http import HttpResponseRedirect
 from django.shortcuts import get_object_or_404, render
-from libvirt import (VIR_SECRET_USAGE_TYPE_CEPH, VIR_SECRET_USAGE_TYPE_ISCSI, VIR_SECRET_USAGE_TYPE_NONE,
-                     VIR_SECRET_USAGE_TYPE_TLS, VIR_SECRET_USAGE_TYPE_VOLUME, libvirtError)
+from libvirt import (
+    VIR_SECRET_USAGE_TYPE_CEPH,
+    VIR_SECRET_USAGE_TYPE_ISCSI,
+    VIR_SECRET_USAGE_TYPE_NONE,
+    VIR_SECRET_USAGE_TYPE_TLS,
+    VIR_SECRET_USAGE_TYPE_VOLUME,
+    libvirtError,
+)
 from vrtManager.secrets import wvmSecrets
 
 
@@ -36,36 +42,38 @@ def secrets(request, compute_id):
             secrt = conn.get_secret(uuid)
             try:
                 secrt_value = conn.get_secret_value(uuid)
-            except libvirtError as lib_err:
+            except libvirtError:
                 secrt_value = None
-            secrets_all.append({
-                'usage': secrt.usageID(),
-                'uuid': secrt.UUIDString(),
-                'usageType': secret_usage_types[secrt.usageType()],
-                'value': secrt_value
-            })
-        if request.method == 'POST':
-            if 'create' in request.POST:
+            secrets_all.append(
+                {
+                    "usage": secrt.usageID(),
+                    "uuid": secrt.UUIDString(),
+                    "usageType": secret_usage_types[secrt.usageType()],
+                    "value": secrt_value,
+                }
+            )
+        if request.method == "POST":
+            if "create" in request.POST:
                 form = AddSecret(request.POST)
                 if form.is_valid():
                     data = form.cleaned_data
                     conn.create_secret(
-                        data['ephemeral'],
-                        data['private'],
-                        data['usage_type'],
-                        data['data'],
+                        data["ephemeral"],
+                        data["private"],
+                        data["usage_type"],
+                        data["data"],
                     )
                     return HttpResponseRedirect(request.get_full_path())
                 else:
                     for msg_err in form.errors.values():
                         messages.error(request, msg_err.as_text())
-            if 'delete' in request.POST:
-                uuid = request.POST.get('uuid', '')
+            if "delete" in request.POST:
+                uuid = request.POST.get("uuid", "")
                 conn.delete_secret(uuid)
                 return HttpResponseRedirect(request.get_full_path())
-            if 'set_value' in request.POST:
-                uuid = request.POST.get('uuid', '')
-                value = request.POST.get('value', '')
+            if "set_value" in request.POST:
+                uuid = request.POST.get("uuid", "")
+                value = request.POST.get("value", "")
                 try:
                     conn.set_secret_value(uuid, value)
                 except Exception as err:
@@ -74,4 +82,4 @@ def secrets(request, compute_id):
     except libvirtError as err:
         messages.error(request, err)
 
-    return render(request, 'secrets.html', locals())
+    return render(request, "secrets.html", locals())

storages/forms.py

@@ -1,4 +1,5 @@
 import re
+
 from django import forms
 from django.utils.translation import gettext_lazy as _
 

storages/views.py

@@ -8,7 +8,6 @@ from django.utils.translation import gettext_lazy as _
 from libvirt import libvirtError
 
 from admin.decorators import superuser_only
-from appsettings.models import AppSettings
 from appsettings.settings import app_settings
 from computes.models import Compute
 from storages.forms import AddStgPool, CloneImage, CreateVolumeForm
@@ -31,34 +30,46 @@ def storages(request, compute_id):
         storages = conn.get_storages_info()
         secrets = conn.get_secrets()
 
-        if request.method == 'POST':
-            if 'create' in request.POST:
+        if request.method == "POST":
+            if "create" in request.POST:
                 form = AddStgPool(request.POST)
                 if form.is_valid():
                     data = form.cleaned_data
-                    if data['name'] in storages:
+                    if data["name"] in storages:
                         msg = _("Pool name already use")
                         messages.error(request, msg)
                         errors = True
-                    if data['stg_type'] == 'rbd':
-                        if not data['secret']:
+                    if data["stg_type"] == "rbd":
+                        if not data["secret"]:
                             msg = _("You need create secret for pool")
                             messages.error(request, msg)
                             errors = True
-                        if not data['ceph_pool'] and not data['ceph_host'] and not data['ceph_user']:
+                        if not data["ceph_pool"] and not data["ceph_host"] and not data["ceph_user"]:
                             msg = _("You need input all fields for creating ceph pool")
                             messages.error(request, msg)
                             errors = True
                     if not errors:
-                        if data['stg_type'] == 'rbd':
-                            conn.create_storage_ceph(data['stg_type'], data['name'], data['ceph_pool'], data['ceph_host'],
-                                                     data['ceph_user'], data['secret'])
-                        elif data['stg_type'] == 'netfs':
-                            conn.create_storage_netfs(data['stg_type'], data['name'], data['netfs_host'], data['source'],
-                                                      data['source_format'], data['target'])
+                        if data["stg_type"] == "rbd":
+                            conn.create_storage_ceph(
+                                data["stg_type"],
+                                data["name"],
+                                data["ceph_pool"],
+                                data["ceph_host"],
+                                data["ceph_user"],
+                                data["secret"],
+                            )
+                        elif data["stg_type"] == "netfs":
+                            conn.create_storage_netfs(
+                                data["stg_type"],
+                                data["name"],
+                                data["netfs_host"],
+                                data["source"],
+                                data["source_format"],
+                                data["target"],
+                            )
                         else:
-                            conn.create_storage(data['stg_type'], data['name'], data['source'], data['target'])
-                        return HttpResponseRedirect(reverse('storage', args=[compute_id, data['name']]))
+                            conn.create_storage(data["stg_type"], data["name"], data["source"], data["target"])
+                        return HttpResponseRedirect(reverse("storage", args=[compute_id, data["name"]]))
                 else:
                     for msg_err in form.errors.values():
                         messages.error(request, msg_err.as_text())
@@ -66,7 +77,7 @@ def storages(request, compute_id):
     except libvirtError as lib_err:
         messages.error(request, lib_err)
 
-    return render(request, 'storages.html', locals())
+    return render(request, "storages.html", locals())
 
 
 @superuser_only
@@ -77,9 +88,10 @@ def storage(request, compute_id, pool):
     :param pool:
     :return:
     """
+
     def handle_uploaded_file(path, f_name):
-        target = path + '/' + str(f_name)
-        destination = open(target, 'wb+')
+        target = path + "/" + str(f_name)
+        destination = open(target, "wb+")
         for chunk in f_name.chunks():
             destination.write(chunk)
         destination.close()
@@ -93,7 +105,7 @@ def storage(request, compute_id, pool):
     storages = conn.get_storages()
     state = conn.is_active()
     size, free = conn.get_size()
-    used = (size - free)
+    used = size - free
     if state:
         percent = (used * 100) // size
     else:
@@ -109,55 +121,58 @@ def storage(request, compute_id, pool):
     else:
         volumes = None
 
-    if request.method == 'POST':
-        if 'start' in request.POST:
+    if request.method == "POST":
+        if "start" in request.POST:
             conn.start()
             return HttpResponseRedirect(request.get_full_path())
-        if 'stop' in request.POST:
+        if "stop" in request.POST:
             conn.stop()
             return HttpResponseRedirect(request.get_full_path())
-        if 'delete' in request.POST:
+        if "delete" in request.POST:
             conn.delete()
-            return HttpResponseRedirect(reverse('storages', args=[compute_id]))
-        if 'set_autostart' in request.POST:
+            return HttpResponseRedirect(reverse("storages", args=[compute_id]))
+        if "set_autostart" in request.POST:
             conn.set_autostart(1)
             return HttpResponseRedirect(request.get_full_path())
-        if 'unset_autostart' in request.POST:
+        if "unset_autostart" in request.POST:
             conn.set_autostart(0)
             return HttpResponseRedirect(request.get_full_path())
-        if 'del_volume' in request.POST:
-            volname = request.POST.get('volname', '')
+        if "del_volume" in request.POST:
+            volname = request.POST.get("volname", "")
             vol = conn.get_volume(volname)
             vol.delete(0)
-            messages.success(request, _(f"Volume: {volname} is deleted."))
-            return redirect(reverse('storage', args=[compute.id, pool]))
+            messages.success(request, _("Volume: %(volume)s is deleted.") % {"vol": volname})
+            return redirect(reverse("storage", args=[compute.id, pool]))
             # return HttpResponseRedirect(request.get_full_path())
-        if 'iso_upload' in request.POST:
-            if str(request.FILES['file']) in conn.update_volumes():
+        if "iso_upload" in request.POST:
+            if str(request.FILES["file"]) in conn.update_volumes():
                 error_msg = _("ISO image already exist")
                 messages.error(request, error_msg)
             else:
-                handle_uploaded_file(path, request.FILES['file'])
-                messages.success(request, _(f"ISO: {request.FILES['file']} is uploaded."))
+                handle_uploaded_file(path, request.FILES["file"])
+                messages.success(request, _("ISO: %(file)s is uploaded.") % {"file": request.FILES["file"]})
                 return HttpResponseRedirect(request.get_full_path())
-        if 'cln_volume' in request.POST:
+        if "cln_volume" in request.POST:
             form = CloneImage(request.POST)
             if form.is_valid():
                 data = form.cleaned_data
-                img_name = data['name']
+                img_name = data["name"]
                 meta_prealloc = 0
                 if img_name in conn.update_volumes():
                     msg = _("Name of volume already in use")
                     messages.error(request, msg)
-                if data['convert']:
-                    format = data['format']
-                    if data['meta_prealloc'] and data['format'] == 'qcow2':
+                if data["convert"]:
+                    format = data["format"]
+                    if data["meta_prealloc"] and data["format"] == "qcow2":
                         meta_prealloc = True
                 else:
                     format = None
                 try:
-                    name = conn.clone_volume(data['image'], data['name'], format, meta_prealloc)
-                    messages.success(request, _(f"{data['image']} image cloned as {name} successfully"))
+                    name = conn.clone_volume(data["image"], data["name"], format, meta_prealloc)
+                    messages.success(
+                        request,
+                        _("%(image)s image cloned as %(clone)s successfully") % {"image": data["image"], "name": name},
+                    )
                     return HttpResponseRedirect(request.get_full_path())
                 except libvirtError as lib_err:
                     messages.error(request, lib_err)
@@ -167,11 +182,17 @@ def storage(request, compute_id, pool):
 
     conn.close()
 
-    return render(request, 'storage.html', locals())
+    return render(request, "storage.html", locals())
 
 
 @superuser_only
 def create_volume(request, compute_id, pool):
+    """
+    :param request:
+    :param compute_id: compute id
+    :param pool: pool name
+    :return:
+    """
     compute = get_object_or_404(Compute, pk=compute_id)
     meta_prealloc = False
 
@@ -182,26 +203,26 @@ def create_volume(request, compute_id, pool):
     form = CreateVolumeForm(request.POST or None)
     if form.is_valid():
         data = form.cleaned_data
-        if data['meta_prealloc'] and data['format'] == 'qcow2':
+        if data["meta_prealloc"] and data["format"] == "qcow2":
             meta_prealloc = True
 
         disk_owner_uid = int(app_settings.INSTANCE_VOLUME_DEFAULT_OWNER_UID)
         disk_owner_gid = int(app_settings.INSTANCE_VOLUME_DEFAULT_OWNER_GID)
 
         name = conn.create_volume(
-            data['name'],
-            data['size'],
-            data['format'],
+            data["name"],
+            data["size"],
+            data["format"],
             meta_prealloc,
             disk_owner_uid,
             disk_owner_gid,
         )
-        messages.success(request, _(f"Image file {name} is created successfully"))
+        messages.success(request, _("Image file %(name)s is created successfully") % {"name": name})
     else:
         for msg_err in form.errors.values():
             messages.error(request, msg_err.as_text())
 
-    return redirect(reverse('storage', args=[compute.id, pool]))
+    return redirect(reverse("storage", args=[compute.id, pool]))
 
 
 def get_volumes(request, compute_id, pool):
@@ -216,7 +237,7 @@ def get_volumes(request, compute_id, pool):
     try:
         conn = wvmStorage(compute.hostname, compute.login, compute.password, compute.type, pool)
         conn.refresh()
-        data['vols'] = sorted(conn.get_volumes())
+        data["vols"] = sorted(conn.get_volumes())
     except libvirtError:
         pass
     return HttpResponse(json.dumps(data))

vrtManager/IPy.py

@@ -6,7 +6,7 @@ Further Information might be available at:
 https://github.com/haypo/python-ipy
 """
 
-__version__ = '1.00'
+__version__ = "1.00"
 
 import bisect
 import collections
@@ -17,16 +17,16 @@ import types
 # this should include www.iana.org/assignments/ipv4-address-space
 # and www.iana.org/assignments/multicast-addresses
 IPv4ranges = {
-    '0': 'PUBLIC',  # fall back
-    '00000000': 'PRIVATE',  # 0/8
-    '00001010': 'PRIVATE',  # 10/8
-    '0110010001': 'CARRIER_GRADE_NAT',  # 100.64/10
-    '01111111': 'LOOPBACK',  # 127.0/8
-    '1': 'PUBLIC',  # fall back
-    '1010100111111110': 'PRIVATE',  # 169.254/16
-    '101011000001': 'PRIVATE',  # 172.16/12
-    '1100000010101000': 'PRIVATE',  # 192.168/16
-    '111': 'RESERVED',  # 224/3
+    "0": "PUBLIC",  # fall back
+    "00000000": "PRIVATE",  # 0/8
+    "00001010": "PRIVATE",  # 10/8
+    "0110010001": "CARRIER_GRADE_NAT",  # 100.64/10
+    "01111111": "LOOPBACK",  # 127.0/8
+    "1": "PUBLIC",  # fall back
+    "1010100111111110": "PRIVATE",  # 169.254/16
+    "101011000001": "PRIVATE",  # 172.16/12
+    "1100000010101000": "PRIVATE",  # 192.168/16
+    "111": "RESERVED",  # 224/3
 }
 
 # Definition of the Ranges for IPv6 IPs
@@ -34,92 +34,92 @@ IPv4ranges = {
 # http://www.iana.org/assignments/ipv6-unicast-address-assignments/
 # http://www.iana.org/assignments/ipv6-multicast-addresses/
 IPv6ranges = {
-    '00000000': 'RESERVED',  # ::/8
-    '0' * 96: 'RESERVED',  # ::/96 Formerly IPV4COMP [RFC4291]
-    '0' * 128: 'UNSPECIFIED',  # ::/128
-    '0' * 127 + '1': 'LOOPBACK',  # ::1/128
-    '0' * 80 + '1' * 16: 'IPV4MAP',  # ::ffff:0:0/96
-    '00000000011001001111111110011011' + '0' * 64: 'WKP46TRANS',  # 0064:ff9b::/96 Well-Known-Prefix [RFC6052]
-    '00000001': 'UNASSIGNED',  # 0100::/8
-    '0000001': 'RESERVED',  # 0200::/7 Formerly NSAP [RFC4048]
-    '0000010': 'RESERVED',  # 0400::/7 Formerly IPX [RFC3513]
-    '0000011': 'RESERVED',  # 0600::/7
-    '00001': 'RESERVED',  # 0800::/5
-    '0001': 'RESERVED',  # 1000::/4
-    '001': 'GLOBAL-UNICAST',  # 2000::/3 [RFC4291]
-    '00100000000000010000000': 'SPECIALPURPOSE',  # 2001::/23 [RFC4773]
-    '00100000000000010000000000000000': 'TEREDO',  # 2001::/32 [RFC4380]
-    '00100000000000010000000000000010' + '0' * 16: 'BMWG',  # 2001:0002::/48 Benchmarking [RFC5180]
-    '0010000000000001000000000001': 'ORCHID',  # 2001:0010::/28 (Temp until 2014-03-21) [RFC4843]
-    '00100000000000010000001': 'ALLOCATED APNIC',  # 2001:0200::/23
-    '00100000000000010000010': 'ALLOCATED ARIN',  # 2001:0400::/23
-    '00100000000000010000011': 'ALLOCATED RIPE NCC',  # 2001:0600::/23
-    '00100000000000010000100': 'ALLOCATED RIPE NCC',  # 2001:0800::/23
-    '00100000000000010000101': 'ALLOCATED RIPE NCC',  # 2001:0a00::/23
-    '00100000000000010000110': 'ALLOCATED APNIC',  # 2001:0c00::/23
-    '00100000000000010000110110111000': 'DOCUMENTATION',  # 2001:0db8::/32 [RFC3849]
-    '00100000000000010000111': 'ALLOCATED APNIC',  # 2001:0e00::/23
-    '00100000000000010001001': 'ALLOCATED LACNIC',  # 2001:1200::/23
-    '00100000000000010001010': 'ALLOCATED RIPE NCC',  # 2001:1400::/23
-    '00100000000000010001011': 'ALLOCATED RIPE NCC',  # 2001:1600::/23
-    '00100000000000010001100': 'ALLOCATED ARIN',  # 2001:1800::/23
-    '00100000000000010001101': 'ALLOCATED RIPE NCC',  # 2001:1a00::/23
-    '0010000000000001000111': 'ALLOCATED RIPE NCC',  # 2001:1c00::/22
-    '00100000000000010010': 'ALLOCATED RIPE NCC',  # 2001:2000::/20
-    '001000000000000100110': 'ALLOCATED RIPE NCC',  # 2001:3000::/21
-    '0010000000000001001110': 'ALLOCATED RIPE NCC',  # 2001:3800::/22
-    '0010000000000001001111': 'RESERVED',  # 2001:3c00::/22 Possible future allocation to RIPE NCC
-    '00100000000000010100000': 'ALLOCATED RIPE NCC',  # 2001:4000::/23
-    '00100000000000010100001': 'ALLOCATED AFRINIC',  # 2001:4200::/23
-    '00100000000000010100010': 'ALLOCATED APNIC',  # 2001:4400::/23
-    '00100000000000010100011': 'ALLOCATED RIPE NCC',  # 2001:4600::/23
-    '00100000000000010100100': 'ALLOCATED ARIN',  # 2001:4800::/23
-    '00100000000000010100101': 'ALLOCATED RIPE NCC',  # 2001:4a00::/23
-    '00100000000000010100110': 'ALLOCATED RIPE NCC',  # 2001:4c00::/23
-    '00100000000000010101': 'ALLOCATED RIPE NCC',  # 2001:5000::/20
-    '0010000000000001100': 'ALLOCATED APNIC',  # 2001:8000::/19
-    '00100000000000011010': 'ALLOCATED APNIC',  # 2001:a000::/20
-    '00100000000000011011': 'ALLOCATED APNIC',  # 2001:b000::/20
-    '0010000000000010': '6TO4',  # 2002::/16 "6to4" [RFC3056]
-    '001000000000001100': 'ALLOCATED RIPE NCC',  # 2003::/18
-    '001001000000': 'ALLOCATED APNIC',  # 2400::/12
-    '001001100000': 'ALLOCATED ARIN',  # 2600::/12
-    '00100110000100000000000': 'ALLOCATED ARIN',  # 2610::/23
-    '00100110001000000000000': 'ALLOCATED ARIN',  # 2620::/23
-    '001010000000': 'ALLOCATED LACNIC',  # 2800::/12
-    '001010100000': 'ALLOCATED RIPE NCC',  # 2a00::/12
-    '001011000000': 'ALLOCATED AFRINIC',  # 2c00::/12
-    '00101101': 'RESERVED',  # 2d00::/8
-    '0010111': 'RESERVED',  # 2e00::/7
-    '0011': 'RESERVED',  # 3000::/4
-    '010': 'RESERVED',  # 4000::/3
-    '011': 'RESERVED',  # 6000::/3
-    '100': 'RESERVED',  # 8000::/3
-    '101': 'RESERVED',  # a000::/3
-    '110': 'RESERVED',  # c000::/3
-    '1110': 'RESERVED',  # e000::/4
-    '11110': 'RESERVED',  # f000::/5
-    '111110': 'RESERVED',  # f800::/6
-    '1111110': 'ULA',  # fc00::/7 [RFC4193]
-    '111111100': 'RESERVED',  # fe00::/9
-    '1111111010': 'LINKLOCAL',  # fe80::/10
-    '1111111011': 'RESERVED',  # fec0::/10 Formerly SITELOCAL [RFC4291]
-    '11111111': 'MULTICAST',  # ff00::/8
-    '1111111100000001': 'NODE-LOCAL MULTICAST',  # ff01::/16
-    '1111111100000010': 'LINK-LOCAL MULTICAST',  # ff02::/16
-    '1111111100000100': 'ADMIN-LOCAL MULTICAST',  # ff04::/16
-    '1111111100000101': 'SITE-LOCAL MULTICAST',  # ff05::/16
-    '1111111100001000': 'ORG-LOCAL MULTICAST',  # ff08::/16
-    '1111111100001110': 'GLOBAL MULTICAST',  # ff0e::/16
-    '1111111100001111': 'RESERVED MULTICAST',  # ff0f::/16
-    '111111110011': 'PREFIX-BASED MULTICAST',  # ff30::/12 [RFC3306]
-    '111111110111': 'RP-EMBEDDED MULTICAST',  # ff70::/12 [RFC3956]
+    "00000000": "RESERVED",  # ::/8
+    "0" * 96: "RESERVED",  # ::/96 Formerly IPV4COMP [RFC4291]
+    "0" * 128: "UNSPECIFIED",  # ::/128
+    "0" * 127 + "1": "LOOPBACK",  # ::1/128
+    "0" * 80 + "1" * 16: "IPV4MAP",  # ::ffff:0:0/96
+    "00000000011001001111111110011011" + "0" * 64: "WKP46TRANS",  # 0064:ff9b::/96 Well-Known-Prefix [RFC6052]
+    "00000001": "UNASSIGNED",  # 0100::/8
+    "0000001": "RESERVED",  # 0200::/7 Formerly NSAP [RFC4048]
+    "0000010": "RESERVED",  # 0400::/7 Formerly IPX [RFC3513]
+    "0000011": "RESERVED",  # 0600::/7
+    "00001": "RESERVED",  # 0800::/5
+    "0001": "RESERVED",  # 1000::/4
+    "001": "GLOBAL-UNICAST",  # 2000::/3 [RFC4291]
+    "00100000000000010000000": "SPECIALPURPOSE",  # 2001::/23 [RFC4773]
+    "00100000000000010000000000000000": "TEREDO",  # 2001::/32 [RFC4380]
+    "00100000000000010000000000000010" + "0" * 16: "BMWG",  # 2001:0002::/48 Benchmarking [RFC5180]
+    "0010000000000001000000000001": "ORCHID",  # 2001:0010::/28 (Temp until 2014-03-21) [RFC4843]
+    "00100000000000010000001": "ALLOCATED APNIC",  # 2001:0200::/23
+    "00100000000000010000010": "ALLOCATED ARIN",  # 2001:0400::/23
+    "00100000000000010000011": "ALLOCATED RIPE NCC",  # 2001:0600::/23
+    "00100000000000010000100": "ALLOCATED RIPE NCC",  # 2001:0800::/23
+    "00100000000000010000101": "ALLOCATED RIPE NCC",  # 2001:0a00::/23
+    "00100000000000010000110": "ALLOCATED APNIC",  # 2001:0c00::/23
+    "00100000000000010000110110111000": "DOCUMENTATION",  # 2001:0db8::/32 [RFC3849]
+    "00100000000000010000111": "ALLOCATED APNIC",  # 2001:0e00::/23
+    "00100000000000010001001": "ALLOCATED LACNIC",  # 2001:1200::/23
+    "00100000000000010001010": "ALLOCATED RIPE NCC",  # 2001:1400::/23
+    "00100000000000010001011": "ALLOCATED RIPE NCC",  # 2001:1600::/23
+    "00100000000000010001100": "ALLOCATED ARIN",  # 2001:1800::/23
+    "00100000000000010001101": "ALLOCATED RIPE NCC",  # 2001:1a00::/23
+    "0010000000000001000111": "ALLOCATED RIPE NCC",  # 2001:1c00::/22
+    "00100000000000010010": "ALLOCATED RIPE NCC",  # 2001:2000::/20
+    "001000000000000100110": "ALLOCATED RIPE NCC",  # 2001:3000::/21
+    "0010000000000001001110": "ALLOCATED RIPE NCC",  # 2001:3800::/22
+    "0010000000000001001111": "RESERVED",  # 2001:3c00::/22 Possible future allocation to RIPE NCC
+    "00100000000000010100000": "ALLOCATED RIPE NCC",  # 2001:4000::/23
+    "00100000000000010100001": "ALLOCATED AFRINIC",  # 2001:4200::/23
+    "00100000000000010100010": "ALLOCATED APNIC",  # 2001:4400::/23
+    "00100000000000010100011": "ALLOCATED RIPE NCC",  # 2001:4600::/23
+    "00100000000000010100100": "ALLOCATED ARIN",  # 2001:4800::/23
+    "00100000000000010100101": "ALLOCATED RIPE NCC",  # 2001:4a00::/23
+    "00100000000000010100110": "ALLOCATED RIPE NCC",  # 2001:4c00::/23
+    "00100000000000010101": "ALLOCATED RIPE NCC",  # 2001:5000::/20
+    "0010000000000001100": "ALLOCATED APNIC",  # 2001:8000::/19
+    "00100000000000011010": "ALLOCATED APNIC",  # 2001:a000::/20
+    "00100000000000011011": "ALLOCATED APNIC",  # 2001:b000::/20
+    "0010000000000010": "6TO4",  # 2002::/16 "6to4" [RFC3056]
+    "001000000000001100": "ALLOCATED RIPE NCC",  # 2003::/18
+    "001001000000": "ALLOCATED APNIC",  # 2400::/12
+    "001001100000": "ALLOCATED ARIN",  # 2600::/12
+    "00100110000100000000000": "ALLOCATED ARIN",  # 2610::/23
+    "00100110001000000000000": "ALLOCATED ARIN",  # 2620::/23
+    "001010000000": "ALLOCATED LACNIC",  # 2800::/12
+    "001010100000": "ALLOCATED RIPE NCC",  # 2a00::/12
+    "001011000000": "ALLOCATED AFRINIC",  # 2c00::/12
+    "00101101": "RESERVED",  # 2d00::/8
+    "0010111": "RESERVED",  # 2e00::/7
+    "0011": "RESERVED",  # 3000::/4
+    "010": "RESERVED",  # 4000::/3
+    "011": "RESERVED",  # 6000::/3
+    "100": "RESERVED",  # 8000::/3
+    "101": "RESERVED",  # a000::/3
+    "110": "RESERVED",  # c000::/3
+    "1110": "RESERVED",  # e000::/4
+    "11110": "RESERVED",  # f000::/5
+    "111110": "RESERVED",  # f800::/6
+    "1111110": "ULA",  # fc00::/7 [RFC4193]
+    "111111100": "RESERVED",  # fe00::/9
+    "1111111010": "LINKLOCAL",  # fe80::/10
+    "1111111011": "RESERVED",  # fec0::/10 Formerly SITELOCAL [RFC4291]
+    "11111111": "MULTICAST",  # ff00::/8
+    "1111111100000001": "NODE-LOCAL MULTICAST",  # ff01::/16
+    "1111111100000010": "LINK-LOCAL MULTICAST",  # ff02::/16
+    "1111111100000100": "ADMIN-LOCAL MULTICAST",  # ff04::/16
+    "1111111100000101": "SITE-LOCAL MULTICAST",  # ff05::/16
+    "1111111100001000": "ORG-LOCAL MULTICAST",  # ff08::/16
+    "1111111100001110": "GLOBAL MULTICAST",  # ff0e::/16
+    "1111111100001111": "RESERVED MULTICAST",  # ff0f::/16
+    "111111110011": "PREFIX-BASED MULTICAST",  # ff30::/12 [RFC3306]
+    "111111110111": "RP-EMBEDDED MULTICAST",  # ff70::/12 [RFC3956]
 }
 
-MAX_IPV4_ADDRESS = 0xffffffff
-MAX_IPV6_ADDRESS = 0xffffffffffffffffffffffffffffffff
-IPV6_TEST_MAP = 0xffffffffffffffffffffffff00000000
-IPV6_MAP_MASK = 0x00000000000000000000ffff00000000
+MAX_IPV4_ADDRESS = 0xFFFFFFFF
+MAX_IPV6_ADDRESS = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
+IPV6_TEST_MAP = 0xFFFFFFFFFFFFFFFFFFFFFFFF00000000
+IPV6_MAP_MASK = 0x00000000000000000000FFFF00000000
 
 if sys.version_info >= (3,):
     INT_TYPES = (int,)
@@ -202,7 +202,7 @@ class IPint(object):
         elif isinstance(data, STR_TYPES):
             # TODO: refactor me!
             # splitting of a string into IP and prefixlen et. al.
-            x = data.split('-')
+            x = data.split("-")
             if len(x) == 2:
                 # a.b.c.0-a.b.c.255 specification ?
                 (ip, last) = x
@@ -219,10 +219,10 @@ class IPint(object):
                 # make sure the broadcast is the same as the last ip
                 # otherwise it will return /16 for something like:
                 # 192.168.0.0-192.168.191.255
-                if IP('%s/%s' % (ip, 32 - netbits)).broadcast().int() != last:
+                if IP("%s/%s" % (ip, 32 - netbits)).broadcast().int() != last:
                     raise ValueError("the range %s is not on a network boundary." % data)
             elif len(x) == 1:
-                x = data.split('/')
+                x = data.split("/")
                 # if no prefix is given use defaults
                 if len(x) == 1:
                     ip = x[0]
@@ -231,7 +231,7 @@ class IPint(object):
                     raise ValueError("only one '/' allowed in IP Address")
                 else:
                     (ip, prefixlen) = x
-                    if prefixlen.find('.') != -1:
+                    if prefixlen.find(".") != -1:
                         # check if the user might have used a netmask like
                         # a.b.c.d/255.255.255.0
                         (netmask, vers) = parseAddress(prefixlen)
@@ -255,8 +255,7 @@ class IPint(object):
             if make_net:
                 self.ip = self.ip & _prefixlenToNetmask(self._prefixlen, self._ipversion)
 
-            if not _checkNetaddrWorksWithPrefixlen(self.ip,
-                                                   self._prefixlen, self._ipversion):
+            if not _checkNetaddrWorksWithPrefixlen(self.ip, self._prefixlen, self._ipversion):
                 raise ValueError("%s has invalid prefix length (%s)" % (repr(self), self._prefixlen))
         else:
             raise TypeError("Unsupported data type: %s" % type(data))
@@ -314,8 +313,7 @@ class IPint(object):
         want == 3               -lastip                  1.2.3.0-1.2.3.255
         """
 
-        if (self._ipversion == 4 and self._prefixlen == 32) or \
-                (self._ipversion == 6 and self._prefixlen == 128):
+        if (self._ipversion == 4 and self._prefixlen == 32) or (self._ipversion == 6 and self._prefixlen == 128):
             if self.NoPrefixForSingleIp:
                 want = 0
         if want is None:
@@ -335,7 +333,7 @@ class IPint(object):
                 # default
                 return "/%d" % (self._prefixlen)
         else:
-            return ''
+            return ""
 
         # We have different flavours to convert to:
         # strFullsize   127.0.0.1    2001:0658:022a:cafe:0200:c0ff:fe8d:08fa
@@ -357,7 +355,7 @@ class IPint(object):
         if self.WantPrefixLen is None and wantprefixlen is None:
             wantprefixlen = 0
         ret = _intToBin(self.ip)
-        return '0' * (bits - len(ret)) + ret + self._printPrefix(wantprefixlen)
+        return "0" * (bits - len(ret)) + ret + self._printPrefix(wantprefixlen)
 
     def strCompressed(self, wantprefixlen=None):
         """Return a string representation in compressed format using '::' Notation.
@@ -376,12 +374,12 @@ class IPint(object):
         if self._ipversion == 4:
             return self.strFullsize(wantprefixlen)
         else:
-            if self.ip >> 32 == 0xffff:
+            if self.ip >> 32 == 0xFFFF:
                 ipv4 = intToIp(self.ip & MAX_IPV4_ADDRESS, 4)
                 text = "::ffff:" + ipv4 + self._printPrefix(wantprefixlen)
                 return text
             # find the longest sequence of '0'
-            hextets = [int(x, 16) for x in self.strFullsize(0).split(':')]
+            hextets = [int(x, 16) for x in self.strFullsize(0).split(":")]
             # every element of followingzeros will contain the number of zeros
             # following the corresponding element of hextets
             followingzeros = [0] * 8
@@ -392,15 +390,15 @@ class IPint(object):
             if max(followingzeros) > 1:
                 # genererate string with the longest number of zeros cut out
                 # now we need hextets as strings
-                hextets = [x for x in self.strNormal(0).split(':')]
-                while compressionpos < len(hextets) and hextets[compressionpos] == '0':
-                    del (hextets[compressionpos])
-                hextets.insert(compressionpos, '')
+                hextets = [x for x in self.strNormal(0).split(":")]
+                while compressionpos < len(hextets) and hextets[compressionpos] == "0":
+                    del hextets[compressionpos]
+                hextets.insert(compressionpos, "")
                 if compressionpos + 1 >= len(hextets):
-                    hextets.append('')
+                    hextets.append("")
                 if compressionpos == 0:
-                    hextets = [''] + hextets
-                return ':'.join(hextets) + self._printPrefix(wantprefixlen)
+                    hextets = [""] + hextets
+                return ":".join(hextets) + self._printPrefix(wantprefixlen)
             else:
                 return self.strNormal(0) + self._printPrefix(wantprefixlen)
 
@@ -419,7 +417,7 @@ class IPint(object):
         if self._ipversion == 4:
             ret = self.strFullsize(0)
         elif self._ipversion == 6:
-            ret = ':'.join(["%x" % x for x in [int(x, 16) for x in self.strFullsize(0).split(':')]])
+            ret = ":".join(["%x" % x for x in [int(x, 16) for x in self.strFullsize(0).split(":")]])
         else:
             raise ValueError("only IPv4 and IPv6 supported")
 
@@ -451,7 +449,7 @@ class IPint(object):
         if self.WantPrefixLen is None and wantprefixlen is None:
             wantprefixlen = 0
 
-        x = '0x%x' % self.ip
+        x = "0x%x" % self.ip
         return x + self._printPrefix(wantprefixlen)
 
     def strDec(self, wantprefixlen=None):
@@ -466,7 +464,7 @@ class IPint(object):
         if self.WantPrefixLen is None and wantprefixlen is None:
             wantprefixlen = 0
 
-        x = '%d' % self.ip
+        x = "%d" % self.ip
         return x + self._printPrefix(wantprefixlen)
 
     def iptype(self):
@@ -581,10 +579,8 @@ class IPint(object):
             raise ValueError("Only adjacent networks can be added together.")
         ret = IP(self.int(), ipversion=self._ipversion)
         ret._prefixlen = self.prefixlen() - 1
-        if not _checkNetaddrWorksWithPrefixlen(ret.ip, ret._prefixlen,
-                                               ret._ipversion):
-            raise ValueError("The resulting %s has invalid prefix length (%s)"
-                             % (repr(ret), ret._prefixlen))
+        if not _checkNetaddrWorksWithPrefixlen(ret.ip, ret._prefixlen, ret._ipversion):
+            raise ValueError("The resulting %s has invalid prefix length (%s)" % (repr(ret), ret._prefixlen))
         return ret
 
     def __sub__(self, other):
@@ -692,7 +688,7 @@ class IPint(object):
         IP('10.0.0.0/24')
         """
 
-        return ("IPint('%s')" % (self.strCompressed(1)))
+        return "IPint('%s')" % (self.strCompressed(1))
 
     def __cmp__(self, other):
         """Called by comparison operations.
@@ -777,7 +773,7 @@ class IPint(object):
         thehash = int(-1)
         ip = self.ip
         while ip > 0:
-            thehash = thehash ^ (ip & 0x7fffffff)
+            thehash = thehash ^ (ip & 0x7FFFFFFF)
             ip = ip >> 32
         thehash = thehash ^ self._prefixlen
         return int(thehash)
@@ -811,17 +807,17 @@ class IP(IPint):
 
         >>> IP('10.0.0.0/8').netmask()
         IP('255.0.0.0')
-         """
+        """
         return IP(IPint.netmask(self), ipversion=self._ipversion)
 
     def _getIPv4Map(self):
         if self._ipversion != 6:
             return None
-        if (self.ip >> 32) != 0xffff:
+        if (self.ip >> 32) != 0xFFFF:
             return None
         ipv4 = self.ip & MAX_IPV4_ADDRESS
         if self._prefixlen != 128:
-            ipv4 = '%s/%s' % (ipv4, 32 - (128 - self._prefixlen))
+            ipv4 = "%s/%s" % (ipv4, 32 - (128 - self._prefixlen))
         return IP(ipv4, ipversion=4)
 
     def reverseNames(self):
@@ -872,7 +868,7 @@ class IP(IPint):
                 raise NotImplementedError("can't create IPv6 reverse names at sub nibble level")
             s = list(s)
             s.reverse()
-            s = '.'.join(s)
+            s = ".".join(s)
             first_nibble_index = int(32 - (self._prefixlen // 4)) * 2
             return ["%s.ip6.arpa." % s[first_nibble_index:]]
         else:
@@ -897,32 +893,34 @@ class IP(IPint):
 
         if self._ipversion == 4:
             s = self.strFullsize(0)
-            s = s.split('.')
+            s = s.split(".")
             s.reverse()
             first_byte_index = int(4 - (self._prefixlen // 8))
             if self._prefixlen % 8 != 0:
                 nibblepart = "%s-%s" % (
-                s[3 - (self._prefixlen // 8)], intToIp(self.ip + self.len() - 1, 4).split('.')[-1])
-                nibblepart += '.'
+                    s[3 - (self._prefixlen // 8)],
+                    intToIp(self.ip + self.len() - 1, 4).split(".")[-1],
+                )
+                nibblepart += "."
             else:
                 nibblepart = ""
 
-            s = '.'.join(s[first_byte_index:])
+            s = ".".join(s[first_byte_index:])
             return "%s%s.in-addr.arpa." % (nibblepart, s)
 
         elif self._ipversion == 6:
             ipv4 = self._getIPv4Map()
             if ipv4 is not None:
                 return ipv4.reverseName()
-            s = '%032x' % self.ip
+            s = "%032x" % self.ip
             if self._prefixlen % 4 != 0:
-                nibblepart = "%s-%x" % (s[self._prefixlen:], self.ip + self.len() - 1)
-                nibblepart += '.'
+                nibblepart = "%s-%x" % (s[self._prefixlen :], self.ip + self.len() - 1)
+                nibblepart += "."
             else:
                 nibblepart = ""
             s = list(s)
             s.reverse()
-            s = '.'.join(s)
+            s = ".".join(s)
             first_nibble_index = int(32 - (self._prefixlen // 4)) * 2
             return "%s%s.ip6.arpa." % (nibblepart, s[first_nibble_index:])
         else:
@@ -937,9 +935,9 @@ class IP(IPint):
         >>> print(IP('127.0.0.1').make_net('255.0.0.0'))
         127.0.0.0/8
         """
-        if '/' in str(netmask):
+        if "/" in str(netmask):
             raise ValueError("invalid netmask (%s)" % netmask)
-        return IP('%s/%s' % (self, netmask), make_net=True)
+        return IP("%s/%s" % (self, netmask), make_net=True)
 
     def __getitem__(self, key):
         """Called to implement evaluation of self[key].
@@ -968,7 +966,7 @@ class IP(IPint):
         IP('10.0.0.0/8')
         """
 
-        return ("IP('%s')" % (self.strCompressed(1)))
+        return "IP('%s')" % (self.strCompressed(1))
 
     def get_mac(self):
         """
@@ -980,15 +978,15 @@ class IP(IPint):
         """
         if self._ipversion != 6:
             return None
-        if (self.ip & 0x20000ffff000000) != 0x20000fffe000000:
+        if (self.ip & 0x20000FFFF000000) != 0x20000FFFE000000:
             return None
-        return '%02x:%02x:%02x:%02x:%02x:%02x' % (
-            (((self.ip >> 56) & 0xff) & 0xfd),
-            (self.ip >> 48) & 0xff,
-            (self.ip >> 40) & 0xff,
-            (self.ip >> 16) & 0xff,
-            (self.ip >> 8) & 0xff,
-            self.ip & 0xff,
+        return "%02x:%02x:%02x:%02x:%02x:%02x" % (
+            (((self.ip >> 56) & 0xFF) & 0xFD),
+            (self.ip >> 48) & 0xFF,
+            (self.ip >> 40) & 0xFF,
+            (self.ip >> 16) & 0xFF,
+            (self.ip >> 8) & 0xFF,
+            self.ip & 0xFF,
         )
 
     def v46map(self):
@@ -1003,14 +1001,11 @@ class IP(IPint):
         IP('192.168.1.1')
         """
         if self._ipversion == 4:
-            return IP(str(IPV6_MAP_MASK + self.ip) +
-                      "/%s" % (self._prefixlen + 96))
+            return IP(str(IPV6_MAP_MASK + self.ip) + "/%s" % (self._prefixlen + 96))
         else:
             if self.ip & IPV6_TEST_MAP == IPV6_MAP_MASK:
-                return IP(str(self.ip - IPV6_MAP_MASK) +
-                          "/%s" % (self._prefixlen - 96))
-        raise ValueError("%s cannot be converted to an IPv4 address."
-                         % repr(self))
+                return IP(str(self.ip - IPV6_MAP_MASK) + "/%s" % (self._prefixlen - 96))
+        raise ValueError("%s cannot be converted to an IPv4 address." % repr(self))
 
 
 class IPSet(collections.MutableSet):
@@ -1022,7 +1017,7 @@ class IPSet(collections.MutableSet):
         # Make sure we only accept IP objects
         for prefix in iterable:
             if not isinstance(prefix, IP):
-                raise ValueError('Only IP objects can be added to an IPSet')
+                raise ValueError("Only IP objects can be added to an IPSet")
 
         # Store and optimize
         self.prefixes = iterable[:]
@@ -1083,7 +1078,7 @@ class IPSet(collections.MutableSet):
             return IPSet(result)
 
     def __repr__(self):
-        return '%s([' % self.__class__.__name__ + ', '.join(map(repr, self.prefixes)) + '])'
+        return "%s([" % self.__class__.__name__ + ", ".join(map(repr, self.prefixes)) + "])"
 
     def len(self):
         return sum(prefix.len() for prefix in self.prefixes)
@@ -1096,7 +1091,7 @@ class IPSet(collections.MutableSet):
         # Check type
         for prefix in value:
             if not isinstance(prefix, IP):
-                raise ValueError('Only IP objects can be added to an IPSet')
+                raise ValueError("Only IP objects can be added to an IPSet")
 
         # Append and optimize
         self.prefixes.extend(value)
@@ -1114,7 +1109,7 @@ class IPSet(collections.MutableSet):
         # Remove
         for del_prefix in value:
             if not isinstance(del_prefix, IP):
-                raise ValueError('Only IP objects can be removed from an IPSet')
+                raise ValueError("Only IP objects can be removed from an IPSet")
 
             # First check if this prefix contains anything in our list
             found = False
@@ -1134,7 +1129,7 @@ class IPSet(collections.MutableSet):
             found = False
             for i in range(len(self.prefixes)):
                 if del_prefix in self.prefixes[i]:
-                    self.prefixes[i:i + 1] = self.prefixes[i] - del_prefix
+                    self.prefixes[i : i + 1] = self.prefixes[i] - del_prefix
                     break
 
         self.optimize()
@@ -1279,13 +1274,13 @@ def _parseAddressIPv6(ipstr):
             fill_pos = len(items)
             index += 2
             continue
-        pos = text.find(':')
+        pos = text.find(":")
         if pos == 0:
             # Invalid IPv6, eg. '1::2:'
             raise ValueError("%r: Invalid IPv6 address" % ipstr)
         if pos != -1:
             items.append(text[:pos])
-            if text[pos:pos + 2] == "::":
+            if text[pos : pos + 2] == "::":
                 index += pos
             else:
                 index += pos + 1
@@ -1297,13 +1292,13 @@ def _parseAddressIPv6(ipstr):
             items.append(text)
             break
 
-    if items and '.' in items[-1]:
+    if items and "." in items[-1]:
         # IPv6 ending with IPv4 like '::ffff:192.168.0.1'
         if (fill_pos is not None) and not (fill_pos <= len(items) - 1):
             # Invalid IPv6: 'ffff:192.168.0.1::'
             raise ValueError("%r: Invalid IPv6 address: '::' after IPv4" % ipstr)
         value = parseAddress(items[-1])[0]
-        items = items[:-1] + ["%04x" % (value >> 16), "%04x" % (value & 0xffff)]
+        items = items[:-1] + ["%04x" % (value >> 16), "%04x" % (value & 0xFFFF)]
 
     # Expand fill_pos to fill with '0'
     # ['1','2'] with fill_pos=1 => ['1', '0', '0', '0', '0', '0', '0', '2']
@@ -1311,7 +1306,7 @@ def _parseAddressIPv6(ipstr):
         diff = 8 - len(items)
         if diff <= 0:
             raise ValueError("%r: Invalid IPv6 address: '::' is not needed" % ipstr)
-        items = items[:fill_pos] + ['0'] * diff + items[fill_pos:]
+        items = items[:fill_pos] + ["0"] * diff + items[fill_pos:]
 
     # Here we have a list of 8 strings
     if len(items) != 8:
@@ -1324,7 +1319,7 @@ def _parseAddressIPv6(ipstr):
     for item in items:
         try:
             item = int(item, 16)
-            error = not (0 <= item <= 0xffff)
+            error = not (0 <= item <= 0xFFFF)
         except ValueError:
             error = True
         if error:
@@ -1388,7 +1383,7 @@ def parseAddress(ipstr, ipversion=0):
     except ValueError:
         intval = None
 
-    if ipstr.startswith('0x') and hexval is not None:
+    if ipstr.startswith("0x") and hexval is not None:
         if hexval > MAX_IPV6_ADDRESS:
             raise ValueError("IP Address can't be larger than %x: %x" % (MAX_IPV6_ADDRESS, hexval))
         if hexval <= MAX_IPV4_ADDRESS:
@@ -1396,19 +1391,19 @@ def parseAddress(ipstr, ipversion=0):
         else:
             return (hexval, 6)
 
-    if ipstr.find(':') != -1:
+    if ipstr.find(":") != -1:
         return (_parseAddressIPv6(ipstr), 6)
 
     elif len(ipstr) == 32 and hexval is not None:
         # assume IPv6 in pure hexadecimal notation
         return (hexval, 6)
 
-    elif ipstr.find('.') != -1 or (intval is not None and intval < 256 and ipversion != 6):
+    elif ipstr.find(".") != -1 or (intval is not None and intval < 256 and ipversion != 6):
         # assume IPv4  ('127' gets interpreted as '127.0.0.0')
-        bytes = ipstr.split('.')
+        bytes = ipstr.split(".")
         if len(bytes) > 4:
             raise ValueError("IPv4 Address with more than 4 bytes")
-        bytes += ['0'] * (4 - len(bytes))
+        bytes += ["0"] * (4 - len(bytes))
         bytes = [int(x) for x in bytes]
         for x in bytes:
             if x > 255 or x < 0:
@@ -1438,12 +1433,12 @@ def intToIp(ip, version):
     if ip < 0:
         raise ValueError("IPs can't be negative: %d" % (ip))
 
-    ret = ''
+    ret = ""
     if version == 4:
         if ip > MAX_IPV4_ADDRESS:
             raise ValueError("IPv4 Address can't be larger than %x: %x" % (MAX_IPV4_ADDRESS, ip))
         for l in xrange(4):
-            ret = str(ip & 0xff) + '.' + ret
+            ret = str(ip & 0xFF) + "." + ret
             ip = ip >> 8
         ret = ret[:-1]
     elif version == 6:
@@ -1453,7 +1448,7 @@ def intToIp(ip, version):
         for x in xrange(1, 33):
             ret = l[-x] + ret
             if x % 4 == 0:
-                ret = ':' + ret
+                ret = ":" + ret
         ret = ret[1:]
     else:
         raise ValueError("only IPv4 and IPv6 supported")
@@ -1494,10 +1489,24 @@ def _countFollowingZeros(l):
         return 1 + _countFollowingZeros(l[1:])
 
 
-_BitTable = {'0': '0000', '1': '0001', '2': '0010', '3': '0011',
-             '4': '0100', '5': '0101', '6': '0110', '7': '0111',
-             '8': '1000', '9': '1001', 'a': '1010', 'b': '1011',
-             'c': '1100', 'd': '1101', 'e': '1110', 'f': '1111'}
+_BitTable = {
+    "0": "0000",
+    "1": "0001",
+    "2": "0010",
+    "3": "0011",
+    "4": "0100",
+    "5": "0101",
+    "6": "0110",
+    "7": "0111",
+    "8": "1000",
+    "9": "1001",
+    "a": "1010",
+    "b": "1011",
+    "c": "1100",
+    "d": "1101",
+    "e": "1110",
+    "f": "1111",
+}
 
 
 def _intToBin(val):
@@ -1506,11 +1515,11 @@ def _intToBin(val):
     if val < 0:
         raise ValueError("Only positive values allowed")
     s = "%x" % val
-    ret = ''
+    ret = ""
     for x in s:
         ret += _BitTable[x]
     # remove leading zeros
-    while ret[0] == '0' and len(ret) > 1:
+    while ret[0] == "0" and len(ret) > 1:
         ret = ret[1:]
     return ret
 
@@ -1595,7 +1604,7 @@ def _checkNetmask(netmask, masklen):
 def _checkNetaddrWorksWithPrefixlen(net, prefixlen, version):
     """Check if a base addess of a network is compatible with a prefixlen"""
     try:
-        return (net & _prefixlenToNetmask(prefixlen, version) == net)
+        return net & _prefixlenToNetmask(prefixlen, version) == net
     except ValueError:
         return False
 
@@ -1637,8 +1646,8 @@ def _remove_subprefix(prefix, subprefix):
 
     # Start cutting in half, recursively
     prefixes = [
-        IP('%s/%d' % (prefix[0], prefix._prefixlen + 1)),
-        IP('%s/%d' % (prefix[int(prefix.len() / 2)], prefix._prefixlen + 1)),
+        IP("%s/%d" % (prefix[0], prefix._prefixlen + 1)),
+        IP("%s/%d" % (prefix[int(prefix.len() / 2)], prefix._prefixlen + 1)),
     ]
     if subprefix in prefixes[0]:
         return _remove_subprefix(prefixes[0], subprefix) + IPSet([prefixes[1]])

vrtManager/connection.py

@@ -1,11 +1,12 @@
-import libvirt
-import threading
-import socket
 import re
-from vrtManager import util
-from vrtManager.rwlock import ReadWriteLock
+import socket
+import threading
+
+import libvirt
 from django.conf import settings
 from libvirt import libvirtError
+from vrtManager import util
+from vrtManager.rwlock import ReadWriteLock
 
 CONN_SOCKET = 4
 CONN_TLS = 3
@@ -18,6 +19,7 @@ TCP_PORT = 16509
 
 class wvmEventLoop(threading.Thread):
     """ Event Loop Class"""
+
     def __init__(self, group=None, target=None, name=None, args=(), kwargs={}):
         # register the default event implementation
         # of libvirt, as we do not have an existing
@@ -25,7 +27,7 @@ class wvmEventLoop(threading.Thread):
         libvirt.virEventRegisterDefaultImpl()
 
         if name is None:
-            name = 'libvirt event loop'
+            name = "libvirt event loop"
 
         super(wvmEventLoop, self).__init__(group, target, name, args, kwargs)
 
@@ -46,6 +48,7 @@ class wvmConnection(object):
     class representing a single connection stored in the Connection Manager
     # to-do: may also need some locking to ensure to not connect simultaniously in 2 threads
     """
+
     def __init__(self, host, login, passwd, conn):
         """
         Sets all class attributes and tries to open the connection
@@ -86,10 +89,12 @@ class wvmConnection(object):
                     #     * set keep alive interval
                     #     * set connection close/fail handler
                     try:
-                        self.connection.setKeepAlive(connection_manager.keepalive_interval, connection_manager.keepalive_count)
+                        self.connection.setKeepAlive(
+                            connection_manager.keepalive_interval, connection_manager.keepalive_count
+                        )
                         try:
                             self.connection.registerCloseCallback(self.__connection_close_callback, None)
-                        except:
+                        except Exception:
                             # Temporary fix for libvirt > libvirt-0.10.2-41
                             pass
                     except libvirtError as e:
@@ -134,49 +139,49 @@ class wvmConnection(object):
     def __connect_tcp(self):
         flags = [libvirt.VIR_CRED_AUTHNAME, libvirt.VIR_CRED_PASSPHRASE]
         auth = [flags, self.__libvirt_auth_credentials_callback, None]
-        uri = f'qemu+tcp://{self.host}/system'
+        uri = f"qemu+tcp://{self.host}/system"
 
         try:
             self.connection = libvirt.openAuth(uri, auth, 0)
             self.last_error = None
 
         except libvirtError as e:
-            self.last_error = f'Connection Failed: {str(e)}'
+            self.last_error = f"Connection Failed: {str(e)}"
             self.connection = None
 
     def __connect_ssh(self):
-        uri = 'qemu+ssh://%s@%s/system' % (self.login, self.host)
+        uri = "qemu+ssh://%s@%s/system" % (self.login, self.host)
 
         try:
             self.connection = libvirt.open(uri)
             self.last_error = None
 
         except libvirtError as e:
-            self.last_error = f'Connection Failed: {str(e)} --- ' + repr(libvirt.virGetLastError())
+            self.last_error = f"Connection Failed: {str(e)} --- " + repr(libvirt.virGetLastError())
             self.connection = None
 
     def __connect_tls(self):
         flags = [libvirt.VIR_CRED_AUTHNAME, libvirt.VIR_CRED_PASSPHRASE]
         auth = [flags, self.__libvirt_auth_credentials_callback, None]
-        uri = 'qemu+tls://%s@%s/system' % (self.login, self.host)
+        uri = "qemu+tls://%s@%s/system" % (self.login, self.host)
 
         try:
             self.connection = libvirt.openAuth(uri, auth, 0)
             self.last_error = None
 
         except libvirtError as e:
-            self.last_error = f'Connection Failed: {str(e)}'
+            self.last_error = f"Connection Failed: {str(e)}"
             self.connection = None
 
     def __connect_socket(self):
-        uri = 'qemu:///system'
+        uri = "qemu:///system"
 
         try:
             self.connection = libvirt.open(uri)
             self.last_error = None
 
         except libvirtError as e:
-            self.last_error = f'Connection Failed: {str(e)}'
+            self.last_error = f"Connection Failed: {str(e)}"
             self.connection = None
 
     def close(self):
@@ -202,23 +207,23 @@ class wvmConnection(object):
             # unregister callback (as it is no longer valid if this instance gets deleted)
             try:
                 self.connection.unregisterCloseCallback()
-            except:
+            except Exception:
                 pass
 
     def __str__(self):
         if self.type == CONN_TCP:
-            type_str = 'tcp'
+            type_str = "tcp"
         elif self.type == CONN_SSH:
-            type_str = 'ssh'
+            type_str = "ssh"
         elif self.type == CONN_TLS:
-            type_str = 'tls'
+            type_str = "tls"
         else:
-            type_str = 'invalid_type'
+            type_str = "invalid_type"
 
-        return f'qemu+{type_str}://{self.login}@{self.host}/system'
+        return f"qemu+{type_str}://{self.login}@{self.host}/system"
 
     def __repr__(self):
-        return f'<wvmConnection {str(self)}>'
+        return f"<wvmConnection {str(self)}>"
 
 
 class wvmConnectionManager(object):
@@ -307,7 +312,7 @@ class wvmConnectionManager(object):
             socket_host = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
             socket_host.settimeout(1)
             if conn_type == CONN_SSH:
-                if ':' in hostname:
+                if ":" in hostname:
                     libvirt_host, PORT = hostname.split(":")
                     PORT = int(PORT)
                 else:
@@ -320,7 +325,7 @@ class wvmConnectionManager(object):
                 socket_host.connect((hostname, TLS_PORT))
             if conn_type == CONN_SOCKET:
                 socket_host = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
-                socket_host.connect('/var/run/libvirt/libvirt-sock')
+                socket_host.connect("/var/run/libvirt/libvirt-sock")
             socket_host.close()
             return True
         except Exception as err:
@@ -328,8 +333,8 @@ class wvmConnectionManager(object):
 
 
 connection_manager = wvmConnectionManager(
-    settings.LIBVIRT_KEEPALIVE_INTERVAL if hasattr(settings, 'LIBVIRT_KEEPALIVE_INTERVAL') else 5,
-    settings.LIBVIRT_KEEPALIVE_COUNT if hasattr(settings, 'LIBVIRT_KEEPALIVE_COUNT') else 5,
+    settings.LIBVIRT_KEEPALIVE_INTERVAL if hasattr(settings, "LIBVIRT_KEEPALIVE_INTERVAL") else 5,
+    settings.LIBVIRT_KEEPALIVE_COUNT if hasattr(settings, "LIBVIRT_KEEPALIVE_COUNT") else 5,
 )
 
 
@@ -353,15 +358,16 @@ class wvmConnect(object):
     def get_dom_cap_xml(self, arch, machine):
         """ Return domain capabilities xml"""
         emulatorbin = self.get_emulator(arch)
-        virttype = 'kvm' if 'kvm' in self.get_hypervisors_domain_types()[arch] else 'qemu'
+        virttype = "kvm" if "kvm" in self.get_hypervisors_domain_types()[arch] else "qemu"
 
         machine_types = self.get_machine_types(arch)
         if not machine or machine not in machine_types:
-            machine = 'pc' if 'pc' in machine_types else machine_types[0]
+            machine = "pc" if "pc" in machine_types else machine_types[0]
         return self.wvm.getDomainCapabilities(emulatorbin, arch, machine, virttype)
 
     def get_capabilities(self, arch):
         """ Host Capabilities for specified architecture """
+
         def guests(ctx):
             result = dict()
             for arch_el in ctx.xpath("/capabilities/guest/arch[@name='{}']".format(arch)):
@@ -371,11 +377,9 @@ class wvmConnect(object):
 
                 result["machines"] = []
                 for m in arch_el.xpath("machine"):
-                    result["machines"].append({
-                        "machine": m.text,
-                        "max_cpu": m.get("maxCpus"),
-                        "canonical": m.get("canonical")
-                    })
+                    result["machines"].append(
+                        {"machine": m.text, "max_cpu": m.get("maxCpus"), "canonical": m.get("canonical")}
+                    )
 
                 guest_el = arch_el.getparent()
                 for f in guest_el.xpath("features"):
@@ -400,7 +404,7 @@ class wvmConnect(object):
         result["os_support"] = util.get_xml_path(xml, "/domainCapabilities/os/@supported")
 
         result["loader_support"] = util.get_xml_path(xml, "/domainCapabilities/os/loader/@supported")
-        if result["loader_support"] == 'yes':
+        if result["loader_support"] == "yes":
             result["loaders"] = self.get_os_loaders(arch, machine)
             result["loader_enums"] = self.get_os_loader_enums(arch, machine)
 
@@ -410,27 +414,29 @@ class wvmConnect(object):
             result["cpu_custom_models"] = self.get_cpu_custom_types(arch, machine)
 
         result["disk_support"] = util.get_xml_path(xml, "/domainCapabilities/devices/disk/@supported")
-        if result["disk_support"] == 'yes':
+        if result["disk_support"] == "yes":
             result["disk_devices"] = self.get_disk_device_types(arch, machine)
             result["disk_bus"] = self.get_disk_bus_types(arch, machine)
 
         result["graphics_support"] = util.get_xml_path(xml, "/domainCapabilities/devices/graphics/@supported")
-        if result["graphics_support"] == 'yes':
+        if result["graphics_support"] == "yes":
             result["graphics_types"] = self.get_graphics_types(arch, machine)
 
         result["video_support"] = util.get_xml_path(xml, "/domainCapabilities/devices/video/@supported")
-        if result["video_support"] == 'yes':
+        if result["video_support"] == "yes":
             result["video_types"] = self.get_video_models(arch, machine)
 
         result["hostdev_support"] = util.get_xml_path(xml, "/domainCapabilities/devices/hostdev/@supported")
-        if result["hostdev_support"] == 'yes':
+        if result["hostdev_support"] == "yes":
             result["hostdev_types"] = self.get_hostdev_modes(arch, machine)
             result["hostdev_startup_policies"] = self.get_hostdev_startup_policies(arch, machine)
             result["hostdev_subsys_types"] = self.get_hostdev_subsys_types(arch, machine)
 
         result["features_gic_support"] = util.get_xml_path(xml, "/domainCapabilities/features/gic/@supported")
         result["features_genid_support"] = util.get_xml_path(xml, "/domainCapabilities/features/genid/@supported")
-        result["features_vmcoreinfo_support"] = util.get_xml_path(xml, "/domainCapabilities/features/vmcoreinfo/@supported")
+        result["features_vmcoreinfo_support"] = util.get_xml_path(
+            xml, "/domainCapabilities/features/vmcoreinfo/@supported"
+        )
         result["features_sev_support"] = util.get_xml_path(xml, "/domainCapabilities/features/sev/@supported")
 
         return result
@@ -510,12 +516,12 @@ class wvmConnect(object):
         :return: Get cache available modes
         """
         return {
-            'default': 'Default',
-            'none': 'Disabled',
-            'writethrough': 'Write through',
-            'writeback': 'Write back',
-            'directsync': 'Direct sync',  # since libvirt 0.9.5
-            'unsafe': 'Unsafe',  # since libvirt 0.9.7
+            "default": "Default",
+            "none": "Disabled",
+            "writethrough": "Write through",
+            "writeback": "Write back",
+            "directsync": "Direct sync",  # since libvirt 0.9.5
+            "unsafe": "Unsafe",  # since libvirt 0.9.7
         }
 
     def get_io_modes(self):
@@ -523,9 +529,9 @@ class wvmConnect(object):
         :return: available io modes
         """
         return {
-            'default': 'Default',
-            'native': 'Native',
-            'threads': 'Threads',
+            "default": "Default",
+            "native": "Native",
+            "threads": "Threads",
         }
 
     def get_discard_modes(self):
@@ -533,9 +539,9 @@ class wvmConnect(object):
         :return: available discard modes
         """
         return {
-            'default': 'Default',
-            'ignore': 'Ignore',
-            'unmap': 'Unmap',
+            "default": "Default",
+            "ignore": "Ignore",
+            "unmap": "Unmap",
         }
 
     def get_detect_zeroes_modes(self):
@@ -543,21 +549,22 @@ class wvmConnect(object):
         :return: available detect zeroes modes
         """
         return {
-            'default': 'Default',
-            'on': 'On',
-            'off': 'Off',
-            'unmap': 'Unmap',
+            "default": "Default",
+            "on": "On",
+            "off": "Off",
+            "unmap": "Unmap",
         }
 
     def get_hypervisors_domain_types(self):
         """
         :return: hypervisor domain types
         """
+
         def hypervisors(ctx):
             result = {}
-            for arch in ctx.xpath('/capabilities/guest/arch'):
-                domain_types = arch.xpath('domain/@type')
-                arch_name = arch.xpath('@name')[0]
+            for arch in ctx.xpath("/capabilities/guest/arch"):
+                domain_types = arch.xpath("domain/@type")
+                arch_name = arch.xpath("@name")[0]
                 result[arch_name] = domain_types
             return result
 
@@ -567,9 +574,10 @@ class wvmConnect(object):
         """
         :return: hypervisor and its machine types
         """
+
         def machines(ctx):
             result = dict()
-            for arche in ctx.xpath('/capabilities/guest/arch'):
+            for arche in ctx.xpath("/capabilities/guest/arch"):
                 arch = arche.get("name")
 
                 result[arch] = self.get_machine_types(arch)
@@ -587,6 +595,7 @@ class wvmConnect(object):
         """
         :return: canonical(if exist) name of machine types
         """
+
         def machines(ctx):
             result = list()
             canonical_name = ctx.xpath("/capabilities/guest/arch[@name='{}']/machine[@canonical]".format(arch))
@@ -602,22 +611,24 @@ class wvmConnect(object):
         """
         :return: host emulators list
         """
+
         def emulators(ctx):
             result = {}
-            for arch in ctx.xpath('/capabilities/guest/arch'):
-                emulator = arch.xpath('emulator')
-                arch_name = arch.xpath('@name')[0]
+            for arch in ctx.xpath("/capabilities/guest/arch"):
+                emulator = arch.xpath("emulator")
+                arch_name = arch.xpath("@name")[0]
                 result[arch_name] = emulator
             return result
 
         return util.get_xml_path(self.get_cap_xml(), func=emulators)
 
-    def get_os_loaders(self, arch='x86_64', machine='pc'):
+    def get_os_loaders(self, arch="x86_64", machine="pc"):
         """
         :param arch: architecture
         :param machine:
         :return: available os loaders list
         """
+
         def get_os_loaders(ctx):
             return [v.text for v in ctx.xpath("/domainCapabilities/os/loader[@supported='yes']/value")]
 
@@ -629,6 +640,7 @@ class wvmConnect(object):
         :param machine:
         :return: available os loaders list
         """
+
         def get_os_loader_enums(ctx):
             result = dict()
             enums = [v for v in ctx.xpath("/domainCapabilities/os/loader[@supported='yes']/enum/@name")]
@@ -645,6 +657,7 @@ class wvmConnect(object):
         :param arch:
         :return: available disk bus types list
         """
+
         def get_bus_list(ctx):
             return [v.text for v in ctx.xpath("/domainCapabilities/devices/disk/enum[@name='bus']/value")]
 
@@ -657,6 +670,7 @@ class wvmConnect(object):
         :param machine:
         :return: available disk device type list
         """
+
         def get_device_list(ctx):
             return [v.text for v in ctx.xpath("/domainCapabilities/devices/disk/enum[@name='diskDevice']/value")]
 
@@ -669,6 +683,7 @@ class wvmConnect(object):
         :param machine:
         :return: available graphics types
         """
+
         def get_graphics_list(ctx):
             return [v.text for v in ctx.xpath("/domainCapabilities/devices/graphics/enum[@name='type']/value")]
 
@@ -680,6 +695,7 @@ class wvmConnect(object):
         :param machine:
         :return: available cpu modes
         """
+
         def get_cpu_modes(ctx):
             return [v for v in ctx.xpath("/domainCapabilities/cpu/mode[@supported='yes']/@name")]
 
@@ -691,6 +707,7 @@ class wvmConnect(object):
         :param machine:
         :return: available graphics types
         """
+
         def get_custom_list(ctx):
             usable_yes = "/domainCapabilities/cpu/mode[@name='custom'][@supported='yes']/model[@usable='yes']"
             usable_unknown = "/domainCapabilities/cpu/mode[@name='custom'][@supported='yes']/model[@usable='unknown']"
@@ -706,6 +723,7 @@ class wvmConnect(object):
         :param machine:
         :return. available nodedev modes
         """
+
         def get_hostdev_list(ctx):
             return [v.text for v in ctx.xpath("/domainCapabilities/devices/hostdev/enum[@name='mode']/value")]
 
@@ -717,6 +735,7 @@ class wvmConnect(object):
         :param machine:
         :return: available hostdev modes
         """
+
         def get_hostdev_list(ctx):
             return [v.text for v in ctx.xpath("/domainCapabilities/devices/hostdev/enum[@name='startupPolicy']/value")]
 
@@ -728,6 +747,7 @@ class wvmConnect(object):
         :param machine:
         :return: available nodedev sub system types
         """
+
         def get_hostdev_list(ctx):
             return [v.text for v in ctx.xpath("/domainCapabilities/devices/hostdev/enum[@name='subsysType']/value")]
 
@@ -737,19 +757,19 @@ class wvmConnect(object):
         """
         :return: network card models
         """
-        return ['default', 'e1000', 'virtio']
+        return ["default", "e1000", "virtio"]
 
     def get_image_formats(self):
         """
         :return: available image formats
         """
-        return ['raw', 'qcow', 'qcow2']
+        return ["raw", "qcow", "qcow2"]
 
     def get_file_extensions(self):
         """
         :return: available image filename extensions
         """
-        return ['img', 'qcow', 'qcow2']
+        return ["img", "qcow", "qcow2"]
 
     def get_video_models(self, arch, machine):
         """
@@ -757,9 +777,10 @@ class wvmConnect(object):
         :param machine:
         :return: available graphics video types
         """
+
         def get_video_list(ctx):
             result = []
-            for video_enum in ctx.xpath('/domainCapabilities/devices/video/enum'):
+            for video_enum in ctx.xpath("/domainCapabilities/devices/video/enum"):
                 if video_enum.xpath("@name")[0] == "modelType":
                     for values in video_enum:
                         result.append(values.text)
@@ -787,8 +808,8 @@ class wvmConnect(object):
 
     def get_network_forward(self, net_name):
         def get_forward(doc):
-            forward_mode = util.get_xpath(doc, '/network/forward/@mode')
-            return forward_mode or 'isolated'
+            forward_mode = util.get_xpath(doc, "/network/forward/@mode")
+            return forward_mode or "isolated"
 
         net = self.get_network(net_name)
         xml = net.XMLDesc(0)
@@ -825,14 +846,14 @@ class wvmConnect(object):
         netdevice = []
 
         def get_info(doc):
-            dev_type = util.get_xpath(doc, '/device/capability/@type')
-            interface = util.get_xpath(doc, '/device/capability/interface')
+            dev_type = util.get_xpath(doc, "/device/capability/@type")
+            interface = util.get_xpath(doc, "/device/capability/interface")
             return dev_type, interface
 
         for dev in self.wvm.listAllDevices(0):
             xml = dev.XMLDesc(0)
             (dev_type, interface) = util.get_xml_path(xml, func=get_info)
-            if dev_type == 'net':
+            if dev_type == "net":
                 netdevice.append(interface)
         return netdevice
 
@@ -850,9 +871,9 @@ class wvmConnect(object):
             else:
                 vcpu = util.get_xpath(doc, "/domain/vcpu")
             title = util.get_xpath(doc, "/domain/title")
-            title = title if title else ''
+            title = title if title else ""
             description = util.get_xpath(doc, "/domain/description")
-            description = description if description else ''
+            description = description if description else ""
             return mem, vcpu, title, description
 
         for name in self.get_instances():
@@ -860,12 +881,12 @@ class wvmConnect(object):
             xml = dom.XMLDesc(0)
             (mem, vcpu, title, description) = util.get_xml_path(xml, func=get_info)
             vname[dom.name()] = {
-                'status': dom.info()[0],
-                'uuid': dom.UUIDString(),
-                'vcpu': vcpu,
-                'memory': mem,
-                'title': title,
-                'description': description,
+                "status": dom.info()[0],
+                "uuid": dom.UUIDString(),
+                "vcpu": vcpu,
+                "memory": mem,
+                "title": title,
+                "description": description,
             }
         return vname
 
@@ -882,20 +903,20 @@ class wvmConnect(object):
             else:
                 vcpu = util.get_xpath(ctx, "/domain/vcpu")
             title = util.get_xpath(ctx, "/domain/title")
-            title = title if title else ''
+            title = title if title else ""
             description = util.get_xpath(ctx, "/domain/description")
-            description = description if description else ''
+            description = description if description else ""
             return mem, vcpu, title, description
 
         (mem, vcpu, title, description) = util.get_xml_path(xml, func=get_info)
         return {
-            'name': dom.name(),
-            'status': dom.info()[0],
-            'uuid': dom.UUIDString(),
-            'vcpu': vcpu,
-            'memory': mem,
-            'title': title,
-            'description': description,
+            "name": dom.name(),
+            "status": dom.info()[0],
+            "uuid": dom.UUIDString(),
+            "vcpu": vcpu,
+            "memory": mem,
+            "title": title,
+            "description": description,
         }
 
     def close(self):
@@ -931,7 +952,7 @@ class wvmConnect(object):
         for arch, patterns in util.UEFI_ARCH_PATTERNS.items():
             for pattern in patterns:
                 if re.match(pattern, path):
-                    return ("UEFI %(arch)s: %(path)s" % {"arch": arch, "path": path})
+                    return "UEFI %(arch)s: %(path)s" % {"arch": arch, "path": path}
 
         return "Custom: %(path)s" % {"path": path}
 
@@ -945,15 +966,17 @@ class wvmConnect(object):
         """
         Return True if libvirt advertises support for proper UEFI setup
         """
-        return ("readonly" in loader_enums and "yes" in loader_enums.get("readonly"))
+        return "readonly" in loader_enums and "yes" in loader_enums.get("readonly")
 
     def is_supports_virtio(self, arch, machine):
         if not self.is_qemu():
             return False
 
         # These _only_ support virtio so don't check the OS
-        if arch in ["aarch64", "armv7l", "ppc64", "ppc64le", "s390x", "riscv64", "riscv32"] and \
-                machine in ["virt", "pseries"]:
+        if arch in ["aarch64", "armv7l", "ppc64", "ppc64le", "s390x", "riscv64", "riscv32"] and machine in [
+            "virt",
+            "pseries",
+        ]:
             return True
 
         if arch in ["x86_64", "i686"]:

vrtManager/create.py

@@ -1,4 +1,5 @@
 import string
+
 from vrtManager import util
 from vrtManager.connection import wvmConnect
 
@@ -12,15 +13,15 @@ def get_rbd_storage_data(stg):
         for host in doc.xpath("/pool/source/host"):
             name = host.prop("name")
             if name:
-                hosts.append({'name': name, 'port': host.prop("port")})
+                hosts.append({"name": name, "port": host.prop("port")})
         return hosts
+
     ceph_hosts = util.get_xml_path(xml, func=get_ceph_hosts)
     secret_uuid = util.get_xml_path(xml, "/pool/source/auth/secret/@uuid")
     return ceph_user, secret_uuid, ceph_hosts
 
 
 class wvmCreate(wvmConnect):
-
     def get_storages_images(self):
         """
         Function return all images on all storages
@@ -31,10 +32,10 @@ class wvmCreate(wvmConnect):
             stg = self.get_storage(storage)
             try:
                 stg.refresh(0)
-            except:
+            except Exception:
                 pass
             for img in stg.listVolumes():
-                if img.lower().endswith('.iso'):
+                if img.lower().endswith(".iso"):
                     pass
                 else:
                     images.append(img)
@@ -52,11 +53,11 @@ class wvmCreate(wvmConnect):
         size = int(size) * 1073741824
         stg = self.get_storage(storage)
         storage_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
-        if storage_type == 'dir':
-            if image_format in ('qcow', 'qcow2'):
-                name += '.' + image_format
+        if storage_type == "dir":
+            if image_format in ("qcow", "qcow2"):
+                name += "." + image_format
             else:
-                name += '.img'
+                name += ".img"
             alloc = 0
         else:
             alloc = size
@@ -91,12 +92,12 @@ class wvmCreate(wvmConnect):
     def get_volume_type(self, path):
         vol = self.get_volume_by_path(path)
         vol_type = util.get_xml_path(vol.XMLDesc(0), "/volume/target/format/@type")
-        if vol_type == 'unknown' or vol_type == 'iso':
-            return 'raw'
+        if vol_type == "unknown" or vol_type == "iso":
+            return "raw"
         if vol_type:
             return vol_type
         else:
-            return 'raw'
+            return "raw"
 
     def get_volume_path(self, volume, pool=None):
         if not pool:
@@ -125,8 +126,8 @@ class wvmCreate(wvmConnect):
 
         storage_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
         format = util.get_xml_path(vol.XMLDesc(0), "/volume/target/format/@type")
-        if storage_type == 'dir':
-            clone += '.img'
+        if storage_type == "dir":
+            clone += ".img"
         else:
             metadata = False
         xml = f"""
@@ -159,9 +160,27 @@ class wvmCreate(wvmConnect):
         vol = self.get_volume_by_path(path)
         vol.delete()
 
-    def create_instance(self, name, memory, vcpu, vcpu_mode, uuid, arch, machine, firmware, volumes,
-                        networks, nwfilter, graphics, virtio, listen_addr,
-                        video="vga", console_pass="random", mac=None, qemu_ga=True):
+    def create_instance(
+        self,
+        name,
+        memory,
+        vcpu,
+        vcpu_mode,
+        uuid,
+        arch,
+        machine,
+        firmware,
+        volumes,
+        networks,
+        nwfilter,
+        graphics,
+        virtio,
+        listen_addr,
+        video="vga",
+        console_pass="random",
+        mac=None,
+        qemu_ga=True,
+    ):
         """
         Create VM function
         """
@@ -178,33 +197,37 @@ class wvmCreate(wvmConnect):
                   <memory unit='KiB'>{memory}</memory>
                   <vcpu>{vcpu}</vcpu>"""
 
-        if dom_caps["os_support"] == 'yes':
+        if dom_caps["os_support"] == "yes":
             xml += f"""<os>
                           <type arch='{arch}' machine='{machine}'>{caps["os_type"]}</type>"""
             xml += """    <boot dev='hd'/>
                           <boot dev='cdrom'/>
                           <bootmenu enable='yes'/>"""
             if firmware:
-                if firmware["secure"] == 'yes':
-                    xml += """<loader readonly='%s' type='%s' secure='%s'>%s</loader>""" % (firmware["readonly"],
-                                                                                            firmware["type"],
-                                                                                            firmware["secure"],
-                                                                                            firmware["loader"])
-                if firmware["secure"] == 'no':
-                    xml += """<loader readonly='%s' type='%s'>%s</loader>""" % (firmware["readonly"],
-                                                                                firmware["type"],
-                                                                                firmware["loader"])
+                if firmware["secure"] == "yes":
+                    xml += """<loader readonly='%s' type='%s' secure='%s'>%s</loader>""" % (
+                        firmware["readonly"],
+                        firmware["type"],
+                        firmware["secure"],
+                        firmware["loader"],
+                    )
+                if firmware["secure"] == "no":
+                    xml += """<loader readonly='%s' type='%s'>%s</loader>""" % (
+                        firmware["readonly"],
+                        firmware["type"],
+                        firmware["loader"],
+                    )
             xml += """</os>"""
 
         if caps["features"]:
             xml += """<features>"""
-            if 'acpi' in caps["features"]:
+            if "acpi" in caps["features"]:
                 xml += """<acpi/>"""
-            if 'apic' in caps["features"]:
+            if "apic" in caps["features"]:
                 xml += """<apic/>"""
-            if 'pae' in caps["features"]:
+            if "pae" in caps["features"]:
                 xml += """<pae/>"""
-            if  firmware.get("secure", 'no') == 'yes':
+            if firmware.get("secure", "no") == "yes":
                 xml += """<smm state="on"/>"""
             xml += """</features>"""
 
@@ -235,56 +258,69 @@ class wvmCreate(wvmConnect):
 
         for volume in volumes:
 
-            disk_opts = ''
-            if volume['cache_mode'] is not None and volume['cache_mode'] != 'default':
+            disk_opts = ""
+            if volume["cache_mode"] is not None and volume["cache_mode"] != "default":
                 disk_opts += f"cache='{volume['cache_mode']}' "
-            if volume['io_mode'] is not None and volume['io_mode'] != 'default':
+            if volume["io_mode"] is not None and volume["io_mode"] != "default":
                 disk_opts += f"io='{volume['io_mode']}' "
-            if volume['discard_mode'] is not None and volume['discard_mode'] != 'default':
+            if volume["discard_mode"] is not None and volume["discard_mode"] != "default":
                 disk_opts += f"discard='{volume['discard_mode']}' "
-            if volume['detect_zeroes_mode'] is not None and volume['detect_zeroes_mode'] != 'default':
+            if volume["detect_zeroes_mode"] is not None and volume["detect_zeroes_mode"] != "default":
                 disk_opts += f"detect_zeroes='{volume['detect_zeroes_mode']}' "
 
-            stg = self.get_storage_by_vol_path(volume['path'])
+            stg = self.get_storage_by_vol_path(volume["path"])
             stg_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
 
-            if volume['device'] == 'cdrom': add_cd = False
+            if volume["device"] == "cdrom":
+                add_cd = False
 
-            if stg_type == 'rbd':
+            if stg_type == "rbd":
                 ceph_user, secret_uuid, ceph_hosts = get_rbd_storage_data(stg)
                 xml += """<disk type='network' device='disk'>
-                            <driver name='qemu' type='%s' %s />""" % (volume['type'], disk_opts)
+                            <driver name='qemu' type='%s' %s />""" % (
+                    volume["type"],
+                    disk_opts,
+                )
                 xml += """  <auth username='%s'>
                                 <secret type='ceph' uuid='%s'/>
                             </auth>
-                            <source protocol='rbd' name='%s'>""" % (ceph_user, secret_uuid, volume['path'])
+                            <source protocol='rbd' name='%s'>""" % (
+                    ceph_user,
+                    secret_uuid,
+                    volume["path"],
+                )
                 if isinstance(ceph_hosts, list):
                     for host in ceph_hosts:
-                        if host.get('port'):
+                        if host.get("port"):
                             xml += """
-                                   <host name='%s' port='%s'/>""" % (host.get('name'), host.get('port'))
+                                   <host name='%s' port='%s'/>""" % (
+                                host.get("name"),
+                                host.get("port"),
+                            )
                         else:
                             xml += """
-                                   <host name='%s'/>""" % host.get('name')
+                                   <host name='%s'/>""" % host.get(
+                                "name"
+                            )
                 xml += """</source>"""
             else:
-                xml += """<disk type='file' device='%s'>""" % volume['device']
-                xml += """ <driver name='qemu' type='%s' %s/>""" % (volume['type'], disk_opts)
-                xml += f""" <source file='%s'/>""" % volume['path']
+                xml += """<disk type='file' device='%s'>""" % volume["device"]
+                xml += """ <driver name='qemu' type='%s' %s/>""" % (volume["type"], disk_opts)
+                xml += """ <source file='%s'/>""" % volume["path"]
 
-            if volume.get('bus') == 'virtio':
-                xml += """<target dev='vd%s' bus='%s'/>""" % (vd_disk_letters.pop(0), volume.get('bus'))
-            elif volume.get('bus') == 'ide':
-                xml += """<target dev='hd%s' bus='%s'/>""" % (hd_disk_letters.pop(0), volume.get('bus'))
-            elif volume.get('bus') == 'fdc':
-                xml += """<target dev='fd%s' bus='%s'/>""" % (fd_disk_letters.pop(0), volume.get('bus'))
-            elif volume.get('bus') == 'sata' or volume.get('bus') == 'scsi':
-                xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), volume.get('bus'))
+            if volume.get("bus") == "virtio":
+                xml += """<target dev='vd%s' bus='%s'/>""" % (vd_disk_letters.pop(0), volume.get("bus"))
+            elif volume.get("bus") == "ide":
+                xml += """<target dev='hd%s' bus='%s'/>""" % (hd_disk_letters.pop(0), volume.get("bus"))
+            elif volume.get("bus") == "fdc":
+                xml += """<target dev='fd%s' bus='%s'/>""" % (fd_disk_letters.pop(0), volume.get("bus"))
+            elif volume.get("bus") == "sata" or volume.get("bus") == "scsi":
+                xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), volume.get("bus"))
             else:
                 xml += """<target dev='sd%s'/>""" % sd_disk_letters.pop(0)
             xml += """</disk>"""
 
-            if volume.get('bus') == 'scsi':
+            if volume.get("bus") == "scsi":
                 xml += f"""<controller type='scsi' model='{volume.get('scsi_model')}'/>"""
 
         if add_cd:
@@ -292,17 +328,17 @@ class wvmCreate(wvmConnect):
                           <driver name='qemu' type='raw'/>
                           <source file = '' />
                           <readonly/>"""
-            if 'ide' in dom_caps['disk_bus']:
-                xml += """<target dev='hd%s' bus='%s'/>""" % (hd_disk_letters.pop(0), 'ide')
-            elif 'sata' in dom_caps['disk_bus']:
-                xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), 'sata')
-            elif 'scsi' in dom_caps['disk_bus']:
-                xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), 'scsi')
+            if "ide" in dom_caps["disk_bus"]:
+                xml += """<target dev='hd%s' bus='%s'/>""" % (hd_disk_letters.pop(0), "ide")
+            elif "sata" in dom_caps["disk_bus"]:
+                xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), "sata")
+            elif "scsi" in dom_caps["disk_bus"]:
+                xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), "scsi")
             else:
-                xml += """<target dev='vd%s' bus='%s'/>""" % (vd_disk_letters.pop(0), 'virtio')
+                xml += """<target dev='vd%s' bus='%s'/>""" % (vd_disk_letters.pop(0), "virtio")
             xml += """</disk>"""
 
-        for net in networks.split(','):
+        for net in networks.split(","):
             xml += """<interface type='network'>"""
             if mac:
                 xml += f"""<mac address='{mac}'/>"""
@@ -319,10 +355,10 @@ class wvmCreate(wvmConnect):
             if not console_pass == "":
                 console_pass = "passwd='" + console_pass + "'"
 
-        if 'usb' in dom_caps['disk_bus']:
-            xml += """<input type='mouse' bus='{}'/>""".format('virtio' if virtio else 'usb')
-            xml += """<input type='keyboard' bus='{}'/>""".format('virtio' if virtio else 'usb')
-            xml += """<input type='tablet' bus='{}'/>""".format('virtio' if virtio else 'usb')
+        if "usb" in dom_caps["disk_bus"]:
+            xml += """<input type='mouse' bus='{}'/>""".format("virtio" if virtio else "usb")
+            xml += """<input type='keyboard' bus='{}'/>""".format("virtio" if virtio else "usb")
+            xml += """<input type='tablet' bus='{}'/>""".format("virtio" if virtio else "usb")
         else:
             xml += """<input type='mouse'/>"""
             xml += """<input type='keyboard'/>"""

vrtManager/hostdetails.py

@@ -1,14 +1,15 @@
 import time
+
 from vrtManager.connection import wvmConnect
 from vrtManager.util import get_xml_path
 
 
 def cpu_version(doc):
-    for info in doc.xpath('/sysinfo/processor/entry'):
-        elem = info.xpath('@name')[0]
-        if elem == 'version':
+    for info in doc.xpath("/sysinfo/processor/entry"):
+        elem = info.xpath("@name")[0]
+        if elem == "version":
             return info.text
-    return 'Unknown'
+    return "Unknown"
 
 
 class wvmHostDetails(wvmConnect):
@@ -19,14 +20,12 @@ class wvmHostDetails(wvmConnect):
         all_mem = self.wvm.getInfo()[1] * 1048576
         freemem = self.wvm.getMemoryStats(-1, 0)
         if isinstance(freemem, dict):
-            free = (freemem['buffers'] +
-                    freemem['free'] +
-                    freemem['cached']) * 1024
+            free = (freemem["buffers"] + freemem["free"] + freemem["cached"]) * 1024
             percent = abs(100 - ((free * 100) // all_mem))
-            usage = (all_mem - free)
-            mem_usage = {'total': all_mem, 'usage': usage, 'percent': percent}
+            usage = all_mem - free
+            mem_usage = {"total": all_mem, "usage": usage, "percent": percent}
         else:
-            mem_usage = {'total': None, 'usage': None, 'percent': None}
+            mem_usage = {"total": None, "usage": None, "percent": None}
         return mem_usage
 
     def get_cpu_usage(self):
@@ -38,7 +37,7 @@ class wvmHostDetails(wvmConnect):
         cpu = self.wvm.getCPUStats(-1, 0)
         if isinstance(cpu, dict):
             for num in range(2):
-                idle = self.wvm.getCPUStats(-1, 0)['idle']
+                idle = self.wvm.getCPUStats(-1, 0)["idle"]
                 total = sum(self.wvm.getCPUStats(-1, 0).values())
                 diff_idle = idle - prev_idle
                 diff_total = total - prev_total
@@ -51,8 +50,8 @@ class wvmHostDetails(wvmConnect):
                     if diff_usage < 0:
                         diff_usage = 0
         else:
-            return {'usage': None}
-        return {'usage': diff_usage}
+            return {"usage": None}
+        return {"usage": diff_usage}
 
     def get_node_info(self):
         """

vrtManager/interface.py

@@ -1,8 +1,8 @@
 from xml.etree import ElementTree
-from libvirt import VIR_INTERFACE_XML_INACTIVE
-from vrtManager.connection import wvmConnect
-from vrtManager import util
 
+from libvirt import VIR_INTERFACE_XML_INACTIVE
+from vrtManager import util
+from vrtManager.connection import wvmConnect
 
 
 class wvmInterfaces(wvmConnect):
@@ -12,36 +12,37 @@ class wvmInterfaces(wvmConnect):
         mac = iface.MACString()
         itype = util.get_xml_path(xml, "/interface/@type")
         state = iface.isActive()
-        return {'name': name, 'type': itype, 'state': state, 'mac': mac}
+        return {"name": name, "type": itype, "state": state, "mac": mac}
 
     def define_iface(self, xml, flag=0):
         self.wvm.interfaceDefineXML(xml, flag)
 
-    def create_iface(self, name, itype, mode, netdev, ipv4_type, ipv4_addr, ipv4_gw,
-                     ipv6_type, ipv6_addr, ipv6_gw, stp, delay):
+    def create_iface(
+        self, name, itype, mode, netdev, ipv4_type, ipv4_addr, ipv4_gw, ipv6_type, ipv6_addr, ipv6_gw, stp, delay
+    ):
         xml = f"""<interface type='{itype}' name='{name}'>
                     <start mode='{mode}'/>"""
-        if ipv4_type == 'dhcp':
+        if ipv4_type == "dhcp":
             xml += """<protocol family='ipv4'>
                         <dhcp/>
                       </protocol>"""
-        if ipv4_type == 'static':
-            address, prefix = ipv4_addr.split('/')
+        if ipv4_type == "static":
+            address, prefix = ipv4_addr.split("/")
             xml += f"""<protocol family='ipv4'>
                         <ip address='{address}' prefix='{prefix}'/>
                         <route gateway='{ipv4_gw}'/>
                       </protocol>"""
-        if ipv6_type == 'dhcp':
+        if ipv6_type == "dhcp":
             xml += """<protocol family='ipv6'>
                         <dhcp/>
                       </protocol>"""
-        if ipv6_type == 'static':
-            address, prefix = ipv6_addr.split('/')
+        if ipv6_type == "static":
+            address, prefix = ipv6_addr.split("/")
             xml += f"""<protocol family='ipv6'>
                         <ip address='{address}' prefix='{prefix}'/>
                         <route gateway='{ipv6_gw}'/>
                       </protocol>"""
-        if itype == 'bridge':
+        if itype == "bridge":
             xml += f"""<bridge stp='{stp}' delay='{delay}'>
                         <interface name='{netdev}' type='ethernet'/>
                       </bridge>"""
@@ -85,9 +86,9 @@ class wvmInterface(wvmConnect):
             xml = self._XMLDesc(VIR_INTERFACE_XML_INACTIVE)
             ipaddr = util.get_xml_path(xml, "/interface/protocol[@family='ipv4']/ip/@address")
             if ipaddr:
-                return 'static'
+                return "static"
             else:
-                return 'dhcp'
+                return "dhcp"
         except:
             return None
 
@@ -98,16 +99,16 @@ class wvmInterface(wvmConnect):
         if not int_ipv4_ip or not int_ipv4_mask:
             return None
         else:
-            return int_ipv4_ip + '/' + int_ipv4_mask
+            return int_ipv4_ip + "/" + int_ipv4_mask
 
     def get_ipv6_type(self):
         try:
             xml = self._XMLDesc(VIR_INTERFACE_XML_INACTIVE)
             ipaddr = util.get_xml_path(xml, "/interface/protocol[@family='ipv6']/ip/@address")
             if ipaddr:
-                return 'static'
+                return "static"
             else:
-                return 'dhcp'
+                return "dhcp"
         except:
             return None
 
@@ -118,15 +119,15 @@ class wvmInterface(wvmConnect):
         if not int_ipv6_ip or not int_ipv6_mask:
             return None
         else:
-            return int_ipv6_ip + '/' + int_ipv6_mask
+            return int_ipv6_ip + "/" + int_ipv6_mask
 
     def get_bridge(self):
         bridge = None
-        if self.get_type() == 'bridge':
+        if self.get_type() == "bridge":
             bridge = util.get_xml_path(self._XMLDesc(), "/interface/bridge/interface/@name")
             for iface in self.get_bridge_slave_ifaces():
-                if iface.get('state') == 'up' and iface.get('speed') is not 'unknown':
-                    bridge = iface.get('name')
+                if iface.get("state") == "up" and iface.get("speed") != "unknown":
+                    bridge = iface.get("name")
                     return bridge
             return bridge
         else:
@@ -134,20 +135,20 @@ class wvmInterface(wvmConnect):
 
     def get_bridge_slave_ifaces(self):
         ifaces = list()
-        if self.get_type() == 'bridge':
+        if self.get_type() == "bridge":
             tree = ElementTree.fromstring(self._XMLDesc())
             for iface in tree.findall("./bridge/"):
                 address = state = speed = None
-                name = iface.get('name')
-                if_type = iface.get('type')
-                link = iface.find('link')
+                name = iface.get("name")
+                if_type = iface.get("type")
+                link = iface.find("link")
                 if link is not None:
-                    state = link.get('state')
-                    speed = link.get('speed')
-                mac = iface.find('mac')
+                    state = link.get("state")
+                    speed = link.get("speed")
+                mac = iface.find("mac")
                 if mac is not None:
-                    address = mac.get('address')
-                ifaces.append({'name': name, 'type': if_type, 'state': state, 'speed': speed, 'mac': address})
+                    address = mac.get("address")
+                ifaces.append({"name": name, "type": if_type, "state": state, "speed": speed, "mac": address})
             return ifaces
         else:
             return None

vrtManager/network.py

@@ -1,11 +1,15 @@
+from libvirt import (
+    VIR_NETWORK_SECTION_IP_DHCP_HOST,
+    VIR_NETWORK_UPDATE_AFFECT_CONFIG,
+    VIR_NETWORK_UPDATE_AFFECT_LIVE,
+    VIR_NETWORK_UPDATE_COMMAND_ADD_LAST,
+    VIR_NETWORK_UPDATE_COMMAND_DELETE,
+    VIR_NETWORK_UPDATE_COMMAND_MODIFY, libvirtError)
 from lxml import etree
-from libvirt import libvirtError
-from libvirt import VIR_NETWORK_SECTION_IP_DHCP_HOST
-from libvirt import VIR_NETWORK_UPDATE_COMMAND_ADD_LAST, VIR_NETWORK_UPDATE_COMMAND_DELETE, VIR_NETWORK_UPDATE_COMMAND_MODIFY
-from libvirt import VIR_NETWORK_UPDATE_AFFECT_LIVE, VIR_NETWORK_UPDATE_AFFECT_CONFIG
 from vrtManager import util
-from vrtManager.IPy import IP
 from vrtManager.connection import wvmConnect
+from vrtManager.IPy import IP
+
 
 def network_size(subnet, dhcp=None):
     """
@@ -17,7 +21,7 @@ def network_size(subnet, dhcp=None):
     if addr.version() == 4:
         dhcp_pool = [addr[2].strCompressed(), addr[addr.len() - 2].strCompressed()]
     if addr.version() == 6:
-        mask = mask.lstrip('/') if '/' in mask else mask
+        mask = mask.lstrip("/") if "/" in mask else mask
         dhcp_pool = [IP(addr[0].strCompressed() + hex(256)), IP(addr[0].strCompressed() + hex(512 - 1))]
     if dhcp:
         return gateway, mask, dhcp_pool
@@ -26,7 +30,6 @@ def network_size(subnet, dhcp=None):
 
 
 class wvmNetworks(wvmConnect):
-
     def get_networks_info(self):
         get_networks = self.get_networks()
         networks = []
@@ -39,44 +42,55 @@ class wvmNetworks(wvmConnect):
                 net_bridge = util.get_xml_path(net.XMLDesc(0), "/network/forward/interface/@dev")
 
             net_forward = util.get_xml_path(net.XMLDesc(0), "/network/forward/@mode")
-            networks.append({'name': network, 'status': net_status,
-                             'device': net_bridge, 'forward': net_forward})
+            networks.append({"name": network, "status": net_status, "device": net_bridge, "forward": net_forward})
         return networks
 
     def define_network(self, xml):
         self.wvm.networkDefineXML(xml)
 
-    def create_network(self, name, forward,
-                       ipv4, gateway, mask, dhcp4,
-                       ipv6, gateway6, prefix6, dhcp6,
-                       bridge, openvswitch, fixed=False):
+    def create_network(
+        self,
+        name,
+        forward,
+        ipv4,
+        gateway,
+        mask,
+        dhcp4,
+        ipv6,
+        gateway6,
+        prefix6,
+        dhcp6,
+        bridge,
+        openvswitch,
+        fixed=False,
+    ):
         xml = f"""
             <network>
                 <name>{name}</name>"""
-        if forward in ['nat', 'route', 'bridge']:
+        if forward in ["nat", "route", "bridge"]:
             xml += f"""<forward mode='{forward}'/>"""
-        if forward == 'macvtap':
+        if forward == "macvtap":
             xml += f"""<forward mode='bridge'>
                           <interface dev='{bridge}'/>
                        </forward>"""
         else:
             xml += """<bridge """
-            if forward in ['nat', 'route', 'none']:
+            if forward in ["nat", "route", "none"]:
                 xml += """stp='on' delay='0'"""
-            if forward == 'bridge':
+            if forward == "bridge":
                 xml += f"""name='{bridge}'"""
             xml += """/>"""
             if openvswitch is True:
                 xml += """<virtualport type='openvswitch'/>"""
-        if forward not in ['bridge', 'macvtap']:
+        if forward not in ["bridge", "macvtap"]:
             if ipv4:
                 xml += f"""<ip address='{gateway}' netmask='{mask}'>"""
                 if dhcp4:
                     xml += f"""<dhcp>
                                 <range start='{dhcp4[0]}' end='{dhcp4[1]}' />"""
                     if fixed:
-                        fist_oct = int(dhcp4[0].strip().split('.')[3])
-                        last_oct = int(dhcp4[1].strip().split('.')[3])
+                        fist_oct = int(dhcp4[0].strip().split(".")[3])
+                        last_oct = int(dhcp4[1].strip().split(".")[3])
                         for ip in range(fist_oct, last_oct + 1):
                             xml += f"""<host mac='{util.randomMAC()}' ip='{gateway[:-2]}.{ip}' />"""
                     xml += """</dhcp>"""
@@ -144,23 +158,23 @@ class wvmNetwork(wvmConnect):
         if util.get_xml_path(xml, "/network/ip") is None:
             return ip_networks
         tree = etree.fromstring(xml)
-        ips = tree.findall('.ip')
+        ips = tree.findall(".ip")
         for ip in ips:
-            address_str = ip.get('address')
-            netmask_str = ip.get('netmask')
-            prefix = ip.get('prefix')
-            family = ip.get('family', 'ipv4')
-            base = 32 if family == 'ipv4' else 128
+            address_str = ip.get("address")
+            netmask_str = ip.get("netmask")
+            prefix = ip.get("prefix")
+            family = ip.get("family", "ipv4")
+            base = 32 if family == "ipv4" else 128
             if prefix:
                 prefix = int(prefix)
-                binstr = ((prefix * "1") + ((base - prefix) * "0"))
+                binstr = (prefix * "1") + ((base - prefix) * "0")
                 netmask_str = str(IP(int(binstr, base=2)))
 
             if netmask_str:
                 netmask = IP(netmask_str)
                 gateway = IP(address_str)
                 network = IP(gateway.int() & netmask.int())
-                netmask_str = netmask_str if family == 'ipv4' else str(prefix)
+                netmask_str = netmask_str if family == "ipv4" else str(prefix)
                 ret = IP(str(network) + "/" + netmask_str)
             else:
                 ret = IP(str(address_str))
@@ -178,12 +192,12 @@ class wvmNetwork(wvmConnect):
         forward_dev = util.get_xml_path(xml, "/network/forward/@dev")
         return [fw, forward_dev]
 
-    def get_dhcp_range(self, family='ipv4'):
+    def get_dhcp_range(self, family="ipv4"):
         xml = self._XMLDesc(0)
-        if family == 'ipv4':
+        if family == "ipv4":
             dhcpstart = util.get_xml_path(xml, "/network/ip[not(@family='ipv6')]/dhcp/range[1]/@start")
             dhcpend = util.get_xml_path(xml, "/network/ip[not(@family='ipv6')]/dhcp/range[1]/@end")
-        if family == 'ipv6':
+        if family == "ipv6":
             dhcpstart = util.get_xml_path(xml, "/network/ip[@family='ipv6']/dhcp/range[1]/@start")
             dhcpend = util.get_xml_path(xml, "/network/ip[@family='ipv6']/dhcp/range[1]/@end")
 
@@ -192,13 +206,13 @@ class wvmNetwork(wvmConnect):
 
         return [IP(dhcpstart), IP(dhcpend)]
 
-    def get_dhcp_range_start(self, family='ipv4'):
+    def get_dhcp_range_start(self, family="ipv4"):
         dhcp = self.get_dhcp_range(family)
         if not dhcp:
             return None
         return dhcp[0]
 
-    def get_dhcp_range_end(self, family='ipv4'):
+    def get_dhcp_range_end(self, family="ipv4"):
         dhcp = self.get_dhcp_range(family)
         if not dhcp:
             return None
@@ -211,74 +225,77 @@ class wvmNetwork(wvmConnect):
             return True
         return bool(util.get_xml_path(xml, "/network/ip/dhcp/bootp/@file"))
 
-    def get_dhcp_host_addr(self, family='ipv4'):
+    def get_dhcp_host_addr(self, family="ipv4"):
         result = list()
         tree = etree.fromstring(self._XMLDesc(0))
 
         for ipdhcp in tree.findall("./ip"):
-            if family == 'ipv4':
-                if ipdhcp.get('family') is None:
-                    hosts = ipdhcp.findall('./dhcp/host')
+            if family == "ipv4":
+                if ipdhcp.get("family") is None:
+                    hosts = ipdhcp.findall("./dhcp/host")
                     for host in hosts:
-                        host_ip = host.get('ip')
-                        mac = host.get('mac')
-                        name = host.get('name', '')
-                        result.append({'ip': host_ip, 'mac': mac, 'name': name})
+                        host_ip = host.get("ip")
+                        mac = host.get("mac")
+                        name = host.get("name", "")
+                        result.append({"ip": host_ip, "mac": mac, "name": name})
                     return result
                 else:
                     continue
-            if family == 'ipv6':
+            if family == "ipv6":
                 hosts = tree.xpath("./ip[@family='ipv6']/dhcp/host")
                 for host in hosts:
-                    host_ip = host.get('ip')
-                    host_id = host.get('id')
-                    name = host.get('name', '')
-                    result.append({'ip': host_ip, 'id': host_id, 'name': name})
+                    host_ip = host.get("ip")
+                    host_id = host.get("id")
+                    name = host.get("name", "")
+                    result.append({"ip": host_ip, "id": host_id, "name": name})
                 return result
 
-    def modify_dhcp_range(self, range_start, range_end, family='ipv4'):
+    def modify_dhcp_range(self, range_start, range_end, family="ipv4"):
         if not self.is_active():
             tree = etree.fromstring(self._XMLDesc(0))
-            if family == 'ipv4':
+            if family == "ipv4":
                 dhcp_range = tree.xpath("./ip[not(@family='ipv6')]/dhcp/range")
-            if family == 'ipv6':
+            if family == "ipv6":
                 dhcp_range = tree.xpath("./ip[@family='ipv6']/dhcp/range")
-            dhcp_range[0].set('start', range_start)
-            dhcp_range[0].set('end', range_end)
+            dhcp_range[0].set("start", range_start)
+            dhcp_range[0].set("end", range_end)
             self.wvm.networkDefineXML(etree.tostring(tree).decode())
 
-    def delete_fixed_address(self, ip, family='ipv4'):
+    def delete_fixed_address(self, ip, family="ipv4"):
         tree = etree.fromstring(self._XMLDesc(0))
-        if family == 'ipv4':
+        if family == "ipv4":
             hosts = tree.xpath("/network/ip[not(@family='ipv6')]/dhcp/host")
             parent_index = self.parent_count - 2
-        if family == 'ipv6':
+        if family == "ipv6":
             hosts = tree.xpath("/network/ip[@family='ipv6']/dhcp/host")
             parent_index = self.parent_count - 1
         for h in hosts:
-            if h.get('ip') == ip:
-                if family == 'ipv4':
-                    new_xml = '<host mac="{}" name="{}" ip="{}"/>'.format(h.get('mac'), h.get('name'), ip)
-                if family == 'ipv6':
-                    new_xml = '<host id="{}" name="{}" ip="{}"/>'.format(h.get('id'), h.get('name'), ip)
+            if h.get("ip") == ip:
+                if family == "ipv4":
+                    new_xml = '<host mac="{}" name="{}" ip="{}"/>'.format(h.get("mac"), h.get("name"), ip)
+                if family == "ipv6":
+                    new_xml = '<host id="{}" name="{}" ip="{}"/>'.format(h.get("id"), h.get("name"), ip)
 
-                self.update(VIR_NETWORK_UPDATE_COMMAND_DELETE, VIR_NETWORK_SECTION_IP_DHCP_HOST,
-                            new_xml,
-                            parent_index,
-                            VIR_NETWORK_UPDATE_AFFECT_LIVE | VIR_NETWORK_UPDATE_AFFECT_CONFIG)
+                self.update(
+                    VIR_NETWORK_UPDATE_COMMAND_DELETE,
+                    VIR_NETWORK_SECTION_IP_DHCP_HOST,
+                    new_xml,
+                    parent_index,
+                    VIR_NETWORK_UPDATE_AFFECT_LIVE | VIR_NETWORK_UPDATE_AFFECT_CONFIG,
+                )
                 break
 
-    def modify_fixed_address(self, name, address, mac_duid, family='ipv4'):
+    def modify_fixed_address(self, name, address, mac_duid, family="ipv4"):
         tree = etree.fromstring(self._XMLDesc(0))
-        if family == 'ipv4':
-            new_xml = '<host mac="{}" {} ip="{}"/>'.format(mac_duid, 'name="' + name + '"' if name else '', IP(address))
+        if family == "ipv4":
+            new_xml = '<host mac="{}" {} ip="{}"/>'.format(mac_duid, 'name="' + name + '"' if name else "", IP(address))
             hosts = tree.xpath("./ip[not(@family='ipv6')]/dhcp/host")
-            compare_var = 'mac'
+            compare_var = "mac"
             parent_index = self.parent_count - 2
-        if family == 'ipv6':
-            new_xml = '<host id="{}" {} ip="{}"/>'.format(mac_duid, 'name="' + name + '"' if name else '', IP(address))
+        if family == "ipv6":
+            new_xml = '<host id="{}" {} ip="{}"/>'.format(mac_duid, 'name="' + name + '"' if name else "", IP(address))
             hosts = tree.xpath("./ip[@family='ipv6']/dhcp/host")
-            compare_var = 'id'
+            compare_var = "id"
             parent_index = self.parent_count - 1
         new_host_xml = etree.fromstring(new_xml)
 
@@ -288,17 +305,25 @@ class wvmNetwork(wvmConnect):
                 host = h
                 break
         if host is None:
-            self.update(VIR_NETWORK_UPDATE_COMMAND_ADD_LAST, VIR_NETWORK_SECTION_IP_DHCP_HOST, new_xml,
-                        parent_index,
-                        VIR_NETWORK_UPDATE_AFFECT_LIVE | VIR_NETWORK_UPDATE_AFFECT_CONFIG)
+            self.update(
+                VIR_NETWORK_UPDATE_COMMAND_ADD_LAST,
+                VIR_NETWORK_SECTION_IP_DHCP_HOST,
+                new_xml,
+                parent_index,
+                VIR_NETWORK_UPDATE_AFFECT_LIVE | VIR_NETWORK_UPDATE_AFFECT_CONFIG,
+            )
         else:
             # change the host
-            if host.get('name') == new_host_xml.get('name') and host.get('ip') == new_host_xml.get('ip'):
+            if host.get("name") == new_host_xml.get("name") and host.get("ip") == new_host_xml.get("ip"):
                 return False
             else:
-                self.update(VIR_NETWORK_UPDATE_COMMAND_MODIFY, VIR_NETWORK_SECTION_IP_DHCP_HOST, new_xml,
-                            parent_index,
-                            VIR_NETWORK_UPDATE_AFFECT_LIVE | VIR_NETWORK_UPDATE_AFFECT_CONFIG)
+                self.update(
+                    VIR_NETWORK_UPDATE_COMMAND_MODIFY,
+                    VIR_NETWORK_SECTION_IP_DHCP_HOST,
+                    new_xml,
+                    parent_index,
+                    VIR_NETWORK_UPDATE_AFFECT_LIVE | VIR_NETWORK_UPDATE_AFFECT_CONFIG,
+                )
 
     def get_qos(self):
         qos_values = dict()
@@ -307,19 +332,19 @@ class wvmNetwork(wvmConnect):
         if qos:
             qos = qos[0]
 
-            in_qos = qos.find('inbound')
+            in_qos = qos.find("inbound")
             if in_qos is not None:
-                in_av = in_qos.get('average')
-                in_peak = in_qos.get('peak')
-                in_burst = in_qos.get('burst')
-                qos_values['inbound'] = {'average': in_av, 'peak': in_peak, 'burst': in_burst}
+                in_av = in_qos.get("average")
+                in_peak = in_qos.get("peak")
+                in_burst = in_qos.get("burst")
+                qos_values["inbound"] = {"average": in_av, "peak": in_peak, "burst": in_burst}
 
-            out_qos = qos.find('outbound')
+            out_qos = qos.find("outbound")
             if out_qos is not None:
-                out_av = out_qos.get('average')
-                out_peak = out_qos.get('peak')
-                out_burst = out_qos.get('burst')
-                qos_values['outbound'] = {'average': out_av, 'peak': out_peak, 'burst': out_burst}
+                out_av = out_qos.get("average")
+                out_peak = out_qos.get("peak")
+                out_burst = out_qos.get("burst")
+                qos_values["outbound"] = {"average": out_av, "peak": out_peak, "burst": out_burst}
         return qos_values
 
     def set_qos(self, direction, average, peak, burst):
@@ -328,7 +353,7 @@ class wvmNetwork(wvmConnect):
         elif direction == "outbound":
             xml = f"<outbound average='{average}' peak='{peak}' burst='{burst}'/>"
         else:
-            raise Exception('Direction must be inbound or outbound')
+            raise Exception("Direction must be inbound or outbound")
 
         tree = etree.fromstring(self._XMLDesc(0))
 
@@ -363,7 +388,7 @@ class wvmNetwork(wvmConnect):
             self.leases = self.net.DHCPLeases()
         except Exception as e:
             self.leases = []
-            raise f"Error getting {self} DHCP leases: {e}"
+            raise "Error getting {} DHCP leases: {}".format(self, e)
 
     def get_dhcp_leases(self):
         if self.leases is None:

vrtManager/nwfilters.py

@@ -1,4 +1,5 @@
 from xml.etree import ElementTree
+
 from vrtManager.connection import wvmConnect
 
 
@@ -7,7 +8,7 @@ class wvmNWFilters(wvmConnect):
         nwfilter = self.get_nwfilter(name)
         xml = nwfilter.XMLDesc(0)
         uuid = nwfilter.UUIDString()
-        return {'name': name, 'uuid': uuid, 'xml': xml}
+        return {"name": name, "uuid": uuid, "xml": xml}
 
     def create_nwfilter(self, xml):
         self.wvm.nwfilterDefineXML(xml)
@@ -16,8 +17,8 @@ class wvmNWFilters(wvmConnect):
         nwfilter = self.get_nwfilter(name)
         if nwfilter:
             tree = ElementTree.fromstring(nwfilter.XMLDesc(0))
-            tree.set('name', cln_name)
-            uuid = tree.find('uuid')
+            tree.set("name", cln_name)
+            uuid = tree.find("uuid")
             tree.remove(uuid)
             self.create_nwfilter(ElementTree.tostring(tree).decode())
 
@@ -41,7 +42,7 @@ class wvmNWFilter(wvmConnect):
 
     def get_xml(self):
         tree = ElementTree.fromstring(self._XMLDesc(0))
-        uuid = tree.find('uuid')
+        uuid = tree.find("uuid")
         tree.remove(uuid)
         return ElementTree.tostring(tree).decode()
 
@@ -49,7 +50,7 @@ class wvmNWFilter(wvmConnect):
         refs = []
         tree = ElementTree.fromstring(self._XMLDesc(0))
         for ref in tree.findall("./filterref"):
-            refs.append(ref.get('filter'))
+            refs.append(ref.get("filter"))
         return refs
 
     def get_rules(self):
@@ -57,10 +58,10 @@ class wvmNWFilter(wvmConnect):
 
         tree = ElementTree.fromstring(self._XMLDesc(0))
         for r in tree.findall("./rule"):
-            rule_action = r.get('action')
-            rule_direction = r.get('direction')
-            rule_priority = r.get('priority')
-            rule_statematch = r.get('statematch')
+            rule_action = r.get("action")
+            rule_direction = r.get("direction")
+            rule_priority = r.get("priority")
+            rule_statematch = r.get("statematch")
 
             rule_directives = r.find("./")
             if rule_directives is not None:
@@ -71,7 +72,7 @@ class wvmNWFilter(wvmConnect):
                 "direction": rule_direction,
                 "priority": rule_priority,
                 "statematch": rule_statematch,
-                "directives": rule_directives
+                "directives": rule_directives,
             }
 
             rules.append(rule_info)
@@ -81,7 +82,7 @@ class wvmNWFilter(wvmConnect):
     def delete_ref(self, name):
         tree = ElementTree.fromstring(self._XMLDesc(0))
         for ref in tree.findall("./filterref"):
-            if name == ref.get('filter'):
+            if name == ref.get("filter"):
                 tree.remove(ref)
                 break
         return ElementTree.tostring(tree).decode()
@@ -89,7 +90,9 @@ class wvmNWFilter(wvmConnect):
     def delete_rule(self, action, direction, priority):
         tree = ElementTree.fromstring(self._XMLDesc(0))
 
-        rule_tree = tree.findall("./rule[@action='%s'][@direction='%s'][@priority='%s']" % (action, direction, priority))
+        rule_tree = tree.findall(
+            "./rule[@action='%s'][@direction='%s'][@priority='%s']" % (action, direction, priority)
+        )
         if rule_tree:
             tree.remove(rule_tree[0])
 
@@ -98,7 +101,7 @@ class wvmNWFilter(wvmConnect):
     def add_ref(self, name):
         tree = ElementTree.fromstring(self._XMLDesc(0))
         element = ElementTree.Element("filterref")
-        element.attrib['filter'] = name
+        element.attrib["filter"] = name
         tree.append(element)
         return ElementTree.tostring(tree).decode()
 
@@ -106,19 +109,21 @@ class wvmNWFilter(wvmConnect):
         tree = ElementTree.fromstring(self._XMLDesc(0))
         rule = ElementTree.fromstring(xml)
 
-        rule_action = rule.get('action')
-        rule_direction = rule.get('direction')
-        rule_priority = rule.get('priority')
+        rule_action = rule.get("action")
+        rule_direction = rule.get("direction")
+        rule_priority = rule.get("priority")
         rule_directives = rule.find("./")
-        rule_tree = tree.findall("./rule[@action='%s'][@direction='%s'][@priority='%s']" % (rule_action, rule_direction, rule_priority))
+        rule_tree = tree.findall(
+            "./rule[@action='%s'][@direction='%s'][@priority='%s']" % (rule_action, rule_direction, rule_priority)
+        )
 
         if rule_tree:
             rule_tree[0].append(rule_directives)
         else:
             element = ElementTree.Element("rule")
-            element.attrib['action'] = rule_action
-            element.attrib['direction'] = rule_direction
-            element.attrib['priority'] = rule_priority
+            element.attrib["action"] = rule_action
+            element.attrib["direction"] = rule_direction
+            element.attrib["priority"] = rule_priority
             element.append(rule_directives)
             tree.append(element)
 

vrtManager/rwlock.py

@@ -11,11 +11,9 @@ found at: http://code.activestate.com/recipes/502283-read-write-lock-class-rlock
 
 # Imports
 # -------
-
 from threading import Condition, Lock, currentThread
 from time import time
 
-
 # Read write lock
 # ---------------
 
@@ -138,9 +136,7 @@ class ReadWriteLock(object):
                     # else also wants to upgrade, there is no way we can do
                     # this except if one of us releases all his read locks.
                     # Signal this to user.
-                    raise ValueError(
-                        "Inevitable dead lock, denying write lock"
-                    )
+                    raise ValueError("Inevitable dead lock, denying write lock")
                 upgradewriter = True
                 self.__upgradewritercount = self.__readers.pop(me)
             else:

vrtManager/secrets.py

@@ -1,4 +1,5 @@
 import base64
+
 from vrtManager.connection import wvmConnect
 
 
@@ -6,12 +7,12 @@ class wvmSecrets(wvmConnect):
     def create_secret(self, ephemeral, private, secret_type, data):
         xml = f"""<secret ephemeral='{ephemeral}' private='{private}'>
                     <usage type='{secret_type}'>"""
-        if secret_type == 'ceph':
+        if secret_type == "ceph":
             xml += f"""<name>{data}</name>"""
-        if secret_type == 'volume':
+        if secret_type == "volume":
             xml += f"""<volume>{data}</volume>"""
-        if secret_type == 'iscsi':
-            xml += f"""<target>{data}</target>""" 
+        if secret_type == "iscsi":
+            xml += f"""<target>{data}</target>"""
         xml += """</usage>
                  </secret>"""
         self.wvm.secretDefineXML(xml)

vrtManager/storage.py

@@ -16,13 +16,7 @@ class wvmStorages(wvmConnect):
                 stg_vol = None
             stg_size = stg.info()[1]
             storages.append(
-                {
-                    "name": pool,
-                    "status": stg_status,
-                    "type": stg_type,
-                    "volumes": stg_vol,
-                    "size": stg_size
-                }
+                {"name": pool, "status": stg_status, "type": stg_type, "volumes": stg_vol, "size": stg_size}
             )
         return storages
 
@@ -103,12 +97,7 @@ class wvmStorage(wvmConnect):
         return self.pool.name()
 
     def get_status(self):
-        status = [
-            "Not running",
-            "Initializing pool, not available",
-            "Running normally",
-            "Running degraded"
-        ]
+        status = ["Not running", "Initializing pool, not available", "Running normally", "Running degraded"]
         try:
             return status[self.pool.info()[0]]
         except ValueError:
@@ -217,12 +206,12 @@ class wvmStorage(wvmConnect):
                     "name": volname,
                     "size": self.get_volume_size(volname),
                     "allocation": self.get_volume_allocation(volname),
-                    "type": self.get_volume_type(volname)
+                    "type": self.get_volume_type(volname),
                 }
             )
         return vol_list
 
-    def create_volume(self, name, size, vol_fmt='qcow2', metadata=False, disk_owner_uid=0, disk_owner_gid=0):
+    def create_volume(self, name, size, vol_fmt="qcow2", metadata=False, disk_owner_uid=0, disk_owner_gid=0):
         size = int(size) * 1073741824
         storage_type = self.get_type()
         alloc = size
@@ -258,7 +247,17 @@ class wvmStorage(wvmConnect):
         self._createXML(xml, metadata)
         return name
 
-    def clone_volume(self, name, target_file, vol_fmt=None, metadata=False, mode='0644', file_suffix='img', disk_owner_uid=0, disk_owner_gid=0):
+    def clone_volume(
+        self,
+        name,
+        target_file,
+        vol_fmt=None,
+        metadata=False,
+        mode="0644",
+        file_suffix="img",
+        disk_owner_uid=0,
+        disk_owner_gid=0,
+    ):
         vol = self.get_volume(name)
         if not vol_fmt:
             vol_fmt = self.get_volume_type(name)
@@ -266,10 +265,10 @@ class wvmStorage(wvmConnect):
         storage_type = self.get_type()
         if storage_type == "dir":
             if vol_fmt in ["qcow", "qcow2"]:
-                target_file += '.' + vol_fmt
+                target_file += "." + vol_fmt
             else:
-                suffix = '.' + file_suffix
-                target_file += suffix if len(suffix) > 1 else ''
+                suffix = "." + file_suffix
+                target_file += suffix if len(suffix) > 1 else ""
 
         xml = f"""
             <volume>

vrtManager/util.py

@@ -1,8 +1,9 @@
 import random
-import string
 import re
-import lxml.etree as etree
+import string
+
 import libvirt
+import lxml.etree as etree
 
 
 def is_kvm_available(xml):
@@ -18,10 +19,8 @@ def randomMAC():
     # qemu MAC
     oui = [0x52, 0x54, 0x00]
 
-    mac = oui + [random.randint(0x00, 0xff),
-                 random.randint(0x00, 0xff),
-                 random.randint(0x00, 0xff)]
-    return ':'.join(map(lambda x: "%02x" % x, mac))
+    mac = oui + [random.randint(0x00, 0xFF), random.randint(0x00, 0xFF), random.randint(0x00, 0xFF)]
+    return ":".join(map(lambda x: "%02x" % x, mac))
 
 
 def randomUUID():
@@ -29,18 +28,17 @@ def randomUUID():
     u = [random.randint(0, 255) for ignore in range(0, 16)]
     u[6] = (u[6] & 0x0F) | (4 << 4)
     u[8] = (u[8] & 0x3F) | (2 << 6)
-    return "-".join(["%02x" * 4, "%02x" * 2, "%02x" * 2, "%02x" * 2,
-                     "%02x" * 6]) % tuple(u)
+    return "-".join(["%02x" * 4, "%02x" * 2, "%02x" * 2, "%02x" * 2, "%02x" * 6]) % tuple(u)
 
 
 def randomPasswd(length=12, alphabet=string.ascii_letters + string.digits):
     """Generate a random password"""
-    return ''.join([random.choice(alphabet) for i in range(length)])
+    return "".join([random.choice(alphabet) for i in range(length)])
 
 
 def get_max_vcpus(conn, type=None):
     """@param conn: libvirt connection to poll for max possible vcpus
-       @type type: optional guest type (kvm, etc.)"""
+    @type type: optional guest type (kvm, etc.)"""
     if type is None:
         type = conn.getType()
     try:
@@ -57,7 +55,7 @@ def xml_escape(str):
 
     str = str.replace("&", "&amp;")
     str = str.replace("'", "&apos;")
-    str = str.replace("\"", "&quot;")
+    str = str.replace('"', "&quot;")
     str = str.replace("<", "&lt;")
     str = str.replace(">", "&gt;")
     return str
@@ -109,7 +107,7 @@ def get_xpath(doc, path):
     if ret is not None:
         if isinstance(ret, list):
             if len(ret) >= 1:
-                if hasattr(ret[0], 'text'):
+                if hasattr(ret[0], "text"):
                     result = ret[0].text
                 else:
                     result = ret[0]
@@ -146,11 +144,11 @@ def validate_uuid(val):
             raise ValueError(
                 "UUID must be a 32-digit hexadecimal number. It may take "
                 "the form xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx or may "
-                "omit hyphens altogether.")
+                "omit hyphens altogether."
+            )
 
-        else:   # UUID had no dashes, so add them in
-            val = (val[0:8] + "-" + val[8:12] + "-" + val[12:16] +
-                   "-" + val[16:20] + "-" + val[20:32])
+        else:  # UUID had no dashes, so add them in
+            val = val[0:8] + "-" + val[8:12] + "-" + val[12:16] + "-" + val[16:20] + "-" + val[20:32]
     return val
 
 
@@ -163,7 +161,7 @@ def validate_macaddr(val):
 
     form = re.match("^([0-9a-fA-F]{1,2}:){5}[0-9a-fA-F]{1,2}$", val)
     if form is None:
-        raise ValueError(f"MAC address must be of the format AA:BB:CC:DD:EE:FF, was {val}")
+        raise ValueError("MAC address must be of the format AA:BB:CC:DD:EE:FF, was {}".format(val))
 
 
 # Mapping of UEFI binary names to their associated architectures. We
@@ -177,7 +175,8 @@ UEFI_ARCH_PATTERNS = {
         r".*OVMF_CODE\.fd",  # RHEL
         r".*ovmf-x64/OVMF.*\.fd",  # gerd's firmware repo
         r".*ovmf-x86_64-.*",  # SUSE
-        r".*ovmf.*", ".*OVMF.*",  # generic attempt at a catchall
+        r".*ovmf.*",
+        ".*OVMF.*",  # generic attempt at a catchall
     ],
     "aarch64": [
         r".*AAVMF_CODE\.fd",  # RHEL

webvirtcloud/common_tags.py

@@ -1,29 +1,30 @@
-from django import template
 import re
 
+from django import template
+
 register = template.Library()
 
 
 @register.simple_tag
 def app_active(request, app_name):
     if request.resolver_match.app_name == app_name:
-        return 'active'
-    return ''
+        return "active"
+    return ""
 
 
 @register.simple_tag
 def view_active(request, view_name):
     if request.resolver_match.view_name == view_name:
-        return 'active'
-    return ''
+        return "active"
+    return ""
 
 
 @register.simple_tag
 def class_active(request, pattern):
     if re.search(pattern, request.path):
         # Not sure why 'class="active"' returns class=""active""
-        return 'active'
-    return ''
+        return "active"
+    return ""
 
 
 @register.simple_tag

webvirtcloud/middleware.py

@@ -15,7 +15,7 @@ class ExceptionMiddleware:
         if isinstance(exception, libvirtError):
             messages.error(
                 request,
-                _('libvirt Error - %(exception)s') % {'exception': exception},
+                _("libvirt Error - %(exception)s") % {"exception": exception},
             )
-            return render(request, '500.html', status=500)
+            return render(request, "500.html", status=500)
             # TODO: check connecting to host via VPN

webvirtcloud/settings-dev.py

@@ -20,9 +20,7 @@ MIDDLEWARE += [
 ]
 
 # DebugToolBar
-INTERNAL_IPS = (
-    "127.0.0.1",
-)
+INTERNAL_IPS = ("127.0.0.1",)
 DEBUG_TOOLBAR_CONFIG = {
     "INTERCEPT_REDIRECTS": False,
 }

webvirtcloud/settings.py.template

@@ -8,102 +8,102 @@ import os
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
-SECRET_KEY = ''
+SECRET_KEY = ""
 
 DEBUG = False
 
-ALLOWED_HOSTS = ['*']
+ALLOWED_HOSTS = ["*"]
 
 # Application definition
 INSTALLED_APPS = [
-    'django.contrib.auth',
-    'django.contrib.contenttypes',
-    'django.contrib.sessions',
-    'django.contrib.messages',
-    'django.contrib.staticfiles',
-    'bootstrap4',
-    'django_icons',
-    'django_otp',
-    'django_otp.plugins.otp_totp',
-    'accounts',
-    'admin',
-    'appsettings',
-    'computes',
-    'console',
-    'datasource',
-    'networks',
-    'instances',
-    'interfaces',
-    'nwfilters',
-    'storages',
-    'secrets',
-    'logs',
-    'qr_code',
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "bootstrap4",
+    "django_icons",
+    "django_otp",
+    "django_otp.plugins.otp_totp",
+    "accounts",
+    "admin",
+    "appsettings",
+    "computes",
+    "console",
+    "datasource",
+    "networks",
+    "instances",
+    "interfaces",
+    "nwfilters",
+    "storages",
+    "secrets",
+    "logs",
+    "qr_code",
 ]
 
 MIDDLEWARE = [
-    'django.middleware.security.SecurityMiddleware',
-    'django.contrib.sessions.middleware.SessionMiddleware',
-    'django.middleware.locale.LocaleMiddleware',
-    'django.middleware.common.CommonMiddleware',
-    'django.middleware.csrf.CsrfViewMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware',
-    'django_otp.middleware.OTPMiddleware',
-    'login_required.middleware.LoginRequiredMiddleware',
-    'django.contrib.auth.middleware.RemoteUserMiddleware',
-    'django.contrib.messages.middleware.MessageMiddleware',
-    'django.middleware.clickjacking.XFrameOptionsMiddleware',
-    'appsettings.middleware.AppSettingsMiddleware',
-    'webvirtcloud.middleware.ExceptionMiddleware',
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.locale.LocaleMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django_otp.middleware.OTPMiddleware",
+    "login_required.middleware.LoginRequiredMiddleware",
+    "django.contrib.auth.middleware.RemoteUserMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
+    "appsettings.middleware.AppSettingsMiddleware",
+    "webvirtcloud.middleware.ExceptionMiddleware",
 ]
 
-ROOT_URLCONF = 'webvirtcloud.urls'
+ROOT_URLCONF = "webvirtcloud.urls"
 
 TEMPLATES = [
     {
-        'BACKEND': 'django.template.backends.django.DjangoTemplates',
-        'DIRS': [
-            os.path.join(BASE_DIR, 'templates'),
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [
+            os.path.join(BASE_DIR, "templates"),
         ],
-        'APP_DIRS': True,
-        'OPTIONS': {
-            'context_processors': [
-                'django.template.context_processors.debug',
-                'django.template.context_processors.request',
-                'django.contrib.auth.context_processors.auth',
-                'django.contrib.messages.context_processors.messages',
-                'appsettings.context_processors.app_settings',
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
+                "appsettings.context_processors.app_settings",
             ],
-            'libraries': {
-                'common_tags': 'webvirtcloud.common_tags',
+            "libraries": {
+                "common_tags": "webvirtcloud.common_tags",
             },
         },
     },
 ]
 
-WSGI_APPLICATION = 'webvirtcloud.wsgi.application'
+WSGI_APPLICATION = "webvirtcloud.wsgi.application"
 
 # Database
 # https://docs.djangoproject.com/en/3.0/ref/settings/#databases
 
 DATABASES = {
-    'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": os.path.join(BASE_DIR, "db.sqlite3"),
     }
 }
 
 AUTHENTICATION_BACKENDS = [
-    'django.contrib.auth.backends.ModelBackend',
+    "django.contrib.auth.backends.ModelBackend",
 ]
 
-LOGIN_URL = '/accounts/login/'
+LOGIN_URL = "/accounts/login/"
 
-LOGOUT_REDIRECT_URL = '/accounts/login/'
+LOGOUT_REDIRECT_URL = "/accounts/login/"
 
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = "en-us"
 
-TIME_ZONE = 'UTC'
+TIME_ZONE = "UTC"
 
 USE_I18N = True
 
@@ -111,30 +111,27 @@ USE_L10N = True
 
 USE_TZ = True
 
-STATIC_URL = '/static/'
+STATIC_URL = "/static/"
 
 STATICFILES_DIRS = [
     os.path.join(BASE_DIR, "static"),
 ]
 
 LOCALE_PATHS = [
-    'locale/',
+    "locale/",
 ]
 
 LOGGING = {
     "version": 1,
     "disable_existing_loggers": False,
     "handlers": {
-        "mail_admins": {
-            "level": "ERROR",
-            "class": "django.utils.log.AdminEmailHandler"
-        }
+        "mail_admins": {"level": "ERROR", "class": "django.utils.log.AdminEmailHandler"}
     },
     "loggers": {
         "django.request": {
             "handlers": ["mail_admins"],
             "level": "ERROR",
-            "propagate": True
+            "propagate": True,
         }
     },
 }
@@ -147,7 +144,7 @@ LOGGING = {
 WS_PORT = 6080
 
 # Websock host
-WS_HOST = '0.0.0.0'
+WS_HOST = "0.0.0.0"
 
 # Websock public port - 80 or 443 if reverse-proxy, else 6080
 WS_PUBLIC_PORT = 6080
@@ -156,22 +153,53 @@ WS_PUBLIC_PORT = 6080
 WS_PUBLIC_HOST = None
 
 # Websock public path
-WS_PUBLIC_PATH = '/novncd/'
+WS_PUBLIC_PATH = "/novncd/"
 
 # Websock Certificate for SSL
 WS_CERT = None
 
 # List of console listen addresses
 QEMU_CONSOLE_LISTEN_ADDRESSES = (
-    ('127.0.0.1', 'Localhost'),
-    ('0.0.0.0', 'All interfaces'),
+    ("127.0.0.1", "Localhost"),
+    ("0.0.0.0", "All interfaces"),
 )
 
 # List taken from http://qemu.weilnetz.de/qemu-doc.html#sec_005finvocation
-QEMU_KEYMAPS = ['ar', 'da', 'de', 'de-ch', 'en-gb', 'en-us', 'es', 'et', 'fi',
-                'fo', 'fr', 'fr-be', 'fr-ca', 'fr-ch', 'hr', 'hu', 'is', 'it',
-                'ja', 'lt', 'lv', 'mk', 'nl', 'nl-be', 'no', 'pl', 'pt',
-                'pt-br', 'ru', 'sl', 'sv', 'th', 'tr']
+QEMU_KEYMAPS = [
+    "ar",
+    "da",
+    "de",
+    "de-ch",
+    "en-gb",
+    "en-us",
+    "es",
+    "et",
+    "fi",
+    "fo",
+    "fr",
+    "fr-be",
+    "fr-ca",
+    "fr-ch",
+    "hr",
+    "hu",
+    "is",
+    "it",
+    "ja",
+    "lt",
+    "lv",
+    "mk",
+    "nl",
+    "nl-be",
+    "no",
+    "pl",
+    "pt",
+    "pt-br",
+    "ru",
+    "sl",
+    "sv",
+    "th",
+    "tr",
+]
 
 # Keepalive interval and count for libvirt connections
 LIBVIRT_KEEPALIVE_INTERVAL = 5
@@ -183,5 +211,4 @@ SHOW_PROFILE_EDIT_PASSWORD = True
 
 OTP_ENABLED = False
 
-LOGIN_REQUIRED_IGNORE_VIEW_NAMES = ['accounts:email_otp']
-
+LOGIN_REQUIRED_IGNORE_VIEW_NAMES = ["accounts:email_otp"]

webvirtcloud/urls.py

@@ -1,21 +1,20 @@
-from django.conf import settings
-from django.urls import include, path
-
 from appsettings.views import appsettings
 from console.views import console
+from django.conf import settings
+from django.urls import include, path
 from instances.views import index
 
 urlpatterns = [
-    path('', index, name='index'),
-    path('admin/', include(('admin.urls', 'admin'), namespace='admin')),
-    path('accounts/', include('accounts.urls')),
-    path('appsettings/', appsettings, name='appsettings'),
-    path('computes/', include('computes.urls')),
-    path('console/', console, name='console'),
-    path('datasource/', include('datasource.urls')),
-    path('instances/', include('instances.urls')),
-    path('i18n/', include('django.conf.urls.i18n')),
-    path('logs/', include('logs.urls')),
+    path("", index, name="index"),
+    path("admin/", include(("admin.urls", "admin"), namespace="admin")),
+    path("accounts/", include("accounts.urls")),
+    path("appsettings/", appsettings, name="appsettings"),
+    path("computes/", include("computes.urls")),
+    path("console/", console, name="console"),
+    path("datasource/", include("datasource.urls")),
+    path("instances/", include("instances.urls")),
+    path("i18n/", include("django.conf.urls.i18n")),
+    path("logs/", include("logs.urls")),
 ]
 
 if settings.DEBUG:
@@ -23,7 +22,7 @@ if settings.DEBUG:
         import debug_toolbar
 
         urlpatterns += [
-            path('__debug__/', include(debug_toolbar.urls)),
+            path("__debug__/", include(debug_toolbar.urls)),
         ]
     except ImportError:
         pass

webvirtcloud/wsgi.py

@@ -11,6 +11,6 @@ import os
 
 from django.core.wsgi import get_wsgi_application
 
-os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'webvirtcloud.settings')
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "webvirtcloud.settings")
 
 application = get_wsgi_application()

webvirtcloud/wsgi_custom.py

@@ -16,7 +16,7 @@ exec(
     compile(
         open("/srv/webvirtcloud/venv/bin/activate", "rb").read(),
         "/srv/webvirtcloud/venv/bin/activate",
-        "exec"
+        "exec",
     )
 )