Migrate source code to python 3.7 and refine code style

create/forms.py

@@ -48,7 +48,7 @@ class NewVMForm(forms.Form):
     virtio = forms.BooleanField(required=False)
     qemu_ga = forms.BooleanField(required=False)
     mac = forms.CharField(required=False)
-    console_pass = forms.CharField(required=False,empty_value="", widget=forms.PasswordInput())
+    console_pass = forms.CharField(required=False, empty_value="", widget=forms.PasswordInput())
     video = forms.CharField(error_messages={'required': _('Please select a graphic display')})
     listener_addr = forms.ChoiceField(required=True, widget=forms.RadioSelect, choices=QEMU_CONSOLE_LISTEN_ADDRESSES)
 
@@ -60,4 +60,3 @@ class NewVMForm(forms.Form):
         elif len(name) > 20:
             raise forms.ValidationError(_('The name of the virtual machine must not exceed 20 characters'))
         return name
-

create/migrations/0001_initial.py

@@ -1,14 +1,8 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.db import models, migrations
 
 
 class Migration(migrations.Migration):
 
-    dependencies = [
-    ]
-
     operations = [
         migrations.CreateModel(
             name='Flavor',
@@ -19,8 +13,6 @@ class Migration(migrations.Migration):
                 ('vcpu', models.IntegerField()),
                 ('disk', models.IntegerField()),
             ],
-            options={
-            },
             bases=(models.Model,),
         ),
     ]

create/migrations/0002_auto_20150325_0921.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.db import migrations
 
 

create/views.py

@@ -109,7 +109,7 @@ def create_instance(request, compute_id):
                             msg = _("A virtual machine with this name already exists")
                             error_messages.append(msg)
                         if Instance.objects.filter(name__exact=data['name']):
-                            messages.warning(request,_("There is an instance with same name. Are you sure?"))
+                            messages.warning(request, _("There is an instance with same name. Are you sure?"))
                     if not error_messages:
                         if data['hdd_size']:
                             if not data['mac']: