Migrate source code to python 3.7 and refine code style

computes/forms.py

@@ -154,7 +154,7 @@ class ComputeAddSocketForm(forms.Form):
     name = forms.CharField(error_messages={'required': _('No hostname has been entered')},
                            max_length=20)
     details = forms.CharField(error_messages={'required': _('No details has been entred')},
-                           max_length=50)
+                              max_length=50)
 
     def clean_name(self):
         name = self.cleaned_data['name']

computes/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='Compute',
@@ -20,8 +14,6 @@ class Migration(migrations.Migration):
                 ('password', models.CharField(max_length=14, null=True, blank=True)),
                 ('type', models.IntegerField()),
             ],
-            options={
-            },
             bases=(models.Model,),
         ),
     ]

computes/migrations/0002_compute_details.py

@@ -1,8 +1,6 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.db import models, migrations
 
+
 class Migration(migrations.Migration):
 
     dependencies = [

computes/views.py

@@ -1,4 +1,3 @@
-import time
 import json
 from django.utils import timezone
 from django.http import HttpResponse, HttpResponseRedirect
@@ -44,7 +43,7 @@ def computes(request):
     error_messages = []
     computes = Compute.objects.filter().order_by('name')
     computes_info = get_hosts_status(computes)
-    
+
     if request.method == 'POST':
         if 'host_del' in request.POST:
             compute_id = request.POST.get('host_id', '')
@@ -213,13 +212,12 @@ def get_compute_disk_buses(request, compute_id, disk):
             if disk == 'disk':
                 data['bus'] = sorted(disk_device_types)
             elif disk == 'cdrom':
-                data['bus'] = ['ide', 'sata', 'scsi',]
+                data['bus'] = ['ide', 'sata', 'scsi']
             elif disk == 'floppy':
-                data['bus'] = ['fdc',]
+                data['bus'] = ['fdc']
             elif disk == 'lun':
-                data['bus'] = ['scsi',]
+                data['bus'] = ['scsi']
     except libvirtError:
         pass
 
     return HttpResponse(json.dumps(data))
-