Fix python errors on latest hack commits => make runserver happy again

uncloud/uncloud_vm/migrations/0004_vmsnapshotproduct.py

@@ -0,0 +1,33 @@
+# Generated by Django 3.0.3 on 2020-02-27 10:50
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import uuid
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('uncloud_pay', '0001_initial'),
+        ('uncloud_vm', '0003_auto_20200225_2028'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='VMSnapshotProduct',
+            fields=[
+                ('uuid', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('status', models.CharField(choices=[('pending', 'Pending'), ('being_created', 'Being created'), ('active', 'Active'), ('deleted', 'Deleted')], default='pending', max_length=256)),
+                ('gb_ssd', models.FloatField(editable=False)),
+                ('gb_hdd', models.FloatField(editable=False)),
+                ('vm_uuid', models.UUIDField()),
+                ('order', models.ForeignKey(editable=False, on_delete=django.db.models.deletion.CASCADE, to='uncloud_pay.Order')),
+                ('owner', models.ForeignKey(editable=False, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+    ]