PEP8

Signed-off-by: Jason Myers <jason@jasonamyers.com>

16 files changed, 172 insertions, 5 deletions

diff --git a/tests/admin_views/admin.py b/tests/admin_views/admin.py
index 2aa96fbafa..039383a7dc 100644
--- a/tests/admin_views/admin.py
+++ b/tests/admin_views/admin.py
@@ -58,6 +58,7 @@ class ArticleInline(admin.TabularInline):
         })
     )
 
+
 class ChapterInline(admin.TabularInline):
     model = Chapter
 
@@ -578,10 +579,12 @@ class AdminOrderedFieldAdmin(admin.ModelAdmin):
     ordering = ('order',)
     list_display = ('stuff', 'order')
 
+
 class AdminOrderedModelMethodAdmin(admin.ModelAdmin):
     ordering = ('order',)
     list_display = ('stuff', 'some_order')
 
+
 class AdminOrderedAdminMethodAdmin(admin.ModelAdmin):
     def some_admin_order(self, obj):
         return obj.order
@@ -589,13 +592,17 @@ class AdminOrderedAdminMethodAdmin(admin.ModelAdmin):
     ordering = ('order',)
     list_display = ('stuff', 'some_admin_order')
 
+
 def admin_ordered_callable(obj):
     return obj.order
 admin_ordered_callable.admin_order_field = 'order'
+
+
 class AdminOrderedCallableAdmin(admin.ModelAdmin):
     ordering = ('order',)
     list_display = ('stuff', admin_ordered_callable)
 
+
 class ReportAdmin(admin.ModelAdmin):
     def extra(self, request):
         return HttpResponse()
@@ -612,6 +619,7 @@ class ReportAdmin(admin.ModelAdmin):
 class CustomTemplateBooleanFieldListFilter(BooleanFieldListFilter):
     template = 'custom_filter_template.html'
 
+
 class CustomTemplateFilterColorAdmin(admin.ModelAdmin):
     list_filter = (('warm', CustomTemplateBooleanFieldListFilter),)
 
@@ -628,12 +636,14 @@ class RelatedPrepopulatedInline1(admin.StackedInline):
     prepopulated_fields = {'slug1': ['name', 'pubdate'],
                            'slug2': ['status', 'name']}
 
+
 class RelatedPrepopulatedInline2(admin.TabularInline):
     model = RelatedPrepopulated
     extra = 1
     prepopulated_fields = {'slug1': ['name', 'pubdate'],
                            'slug2': ['status', 'name']}
 
+
 class MainPrepopulatedAdmin(admin.ModelAdmin):
     inlines = [RelatedPrepopulatedInline1, RelatedPrepopulatedInline2]
     fieldsets = (
@@ -712,14 +722,17 @@ class FormWithoutHiddenField(forms.ModelForm):
     first = forms.CharField()
     second = forms.CharField()
 
+
 class FormWithoutVisibleField(forms.ModelForm):
     first = forms.CharField(widget=forms.HiddenInput)
     second = forms.CharField(widget=forms.HiddenInput)
 
+
 class FormWithVisibleAndHiddenField(forms.ModelForm):
     first = forms.CharField(widget=forms.HiddenInput)
     second = forms.CharField()
 
+
 class EmptyModelVisibleAdmin(admin.ModelAdmin):
     form = FormWithoutHiddenField
     fieldsets = (
@@ -728,39 +741,48 @@ class EmptyModelVisibleAdmin(admin.ModelAdmin):
         }),
     )
 
+
 class EmptyModelHiddenAdmin(admin.ModelAdmin):
     form = FormWithoutVisibleField
     fieldsets = EmptyModelVisibleAdmin.fieldsets
 
+
 class EmptyModelMixinAdmin(admin.ModelAdmin):
     form = FormWithVisibleAndHiddenField
     fieldsets = EmptyModelVisibleAdmin.fieldsets
 
+
 class CityInlineAdmin(admin.TabularInline):
     model = City
     view_on_site = False
 
+
 class StateAdmin(admin.ModelAdmin):
     inlines = [CityInlineAdmin]
 
+
 class RestaurantInlineAdmin(admin.TabularInline):
     model = Restaurant
     view_on_site = True
 
+
 class CityAdmin(admin.ModelAdmin):
     inlines = [RestaurantInlineAdmin]
     view_on_site = True
 
+
 class WorkerAdmin(admin.ModelAdmin):
     def view_on_site(self, obj):
         return '/worker/%s/%s/' % (obj.surname, obj.name)
 
+
 class WorkerInlineAdmin(admin.TabularInline):
     model = Worker
 
     def view_on_site(self, obj):
         return '/worker_inline/%s/%s/' % (obj.surname, obj.name)
 
+
 class RestaurantAdmin(admin.ModelAdmin):
     inlines = [WorkerInlineAdmin]
     view_on_site = False
diff --git a/tests/decorators/tests.py b/tests/decorators/tests.py
index 4016273ef5..db00f36051 100644
--- a/tests/decorators/tests.py
+++ b/tests/decorators/tests.py
@@ -44,7 +44,7 @@ full_decorator = compose(
     vary_on_cookie,
 
     # django.views.decorators.cache
-    cache_page(60*15),
+    cache_page(60 * 15),
     cache_control(private=True),
     never_cache,
 
@@ -65,6 +65,7 @@ full_decorator = compose(
 
 fully_decorated = full_decorator(fully_decorated)
 
+
 class DecoratorsTest(TestCase):
 
     def test_attributes(self):
diff --git a/tests/defer/models.py b/tests/defer/models.py
index cf3bae86bb..ffc8a0c2c7 100644
--- a/tests/defer/models.py
+++ b/tests/defer/models.py
@@ -10,6 +10,7 @@ class Secondary(models.Model):
     first = models.CharField(max_length=50)
     second = models.CharField(max_length=50)
 
+
 @python_2_unicode_compatible
 class Primary(models.Model):
     name = models.CharField(max_length=50)
@@ -19,12 +20,15 @@ class Primary(models.Model):
     def __str__(self):
         return self.name
 
+
 class Child(Primary):
     pass
 
+
 class BigChild(Primary):
     other = models.CharField(max_length=50)
 
+
 class ChildProxy(Child):
     class Meta:
         proxy = True
diff --git a/tests/defer_regress/models.py b/tests/defer_regress/models.py
index 0170221cb9..d858558e97 100644
--- a/tests/defer_regress/models.py
+++ b/tests/defer_regress/models.py
@@ -16,13 +16,16 @@ class Item(models.Model):
     def __str__(self):
         return self.name
 
+
 class RelatedItem(models.Model):
     item = models.ForeignKey(Item)
 
+
 class Child(models.Model):
     name = models.CharField(max_length=10)
     value = models.IntegerField()
 
+
 @python_2_unicode_compatible
 class Leaf(models.Model):
     name = models.CharField(max_length=10)
@@ -33,14 +36,17 @@ class Leaf(models.Model):
     def __str__(self):
         return self.name
 
+
 class ResolveThis(models.Model):
     num = models.FloatField()
     name = models.CharField(max_length=16)
 
+
 class Proxy(Item):
     class Meta:
         proxy = True
 
+
 @python_2_unicode_compatible
 class SimpleItem(models.Model):
     name = models.CharField(max_length=15)
@@ -49,29 +55,37 @@ class SimpleItem(models.Model):
     def __str__(self):
         return self.name
 
+
 class Feature(models.Model):
     item = models.ForeignKey(SimpleItem)
 
+
 class SpecialFeature(models.Model):
     feature = models.ForeignKey(Feature)
 
+
 class OneToOneItem(models.Model):
     item = models.OneToOneField(Item, related_name="one_to_one_item")
     name = models.CharField(max_length=15)
 
+
 class ItemAndSimpleItem(models.Model):
     item = models.ForeignKey(Item)
     simple = models.ForeignKey(SimpleItem)
 
+
 class Profile(models.Model):
     profile1 = models.CharField(max_length=1000, default='profile1')
 
+
 class Location(models.Model):
     location1 = models.CharField(max_length=1000, default='location1')
 
+
 class Item(models.Model):
     pass
 
+
 class Request(models.Model):
     profile = models.ForeignKey(Profile, null=True, blank=True)
     location = models.ForeignKey(Location)
diff --git a/tests/model_forms/tests.py b/tests/model_forms/tests.py
index ddc7a4ceef..5e443011c2 100644
--- a/tests/model_forms/tests.py
+++ b/tests/model_forms/tests.py
@@ -185,6 +185,7 @@ class BetterWriterForm(forms.ModelForm):
         model = BetterWriter
         fields = '__all__'
 
+
 class WriterProfileForm(forms.ModelForm):
     class Meta:
         model = WriterProfile
@@ -234,6 +235,7 @@ class ColourfulItemForm(forms.ModelForm):
 
 # model forms for testing work on #9321:
 
+
 class StatusNoteForm(forms.ModelForm):
     class Meta:
         model = ArticleStatusNote
@@ -295,7 +297,7 @@ class ModelFormBaseTest(TestCase):
                 fields = '__all__'
 
         self.assertIsInstance(ReplaceField.base_fields['url'],
-                                     forms.fields.BooleanField)
+            forms.fields.BooleanField)
 
     def test_replace_field_variant_2(self):
         # Should have the same result as before,
@@ -308,7 +310,7 @@ class ModelFormBaseTest(TestCase):
                 fields = ['url']
 
         self.assertIsInstance(ReplaceField.base_fields['url'],
-                                     forms.fields.BooleanField)
+            forms.fields.BooleanField)
 
     def test_replace_field_variant_3(self):
         # Should have the same result as before,
@@ -321,7 +323,7 @@ class ModelFormBaseTest(TestCase):
                 fields = []  # url will still appear, since it is explicit above
 
         self.assertIsInstance(ReplaceField.base_fields['url'],
-                                     forms.fields.BooleanField)
+            forms.fields.BooleanField)
 
     def test_override_field(self):
         class WriterForm(forms.ModelForm):
@@ -583,6 +585,7 @@ class IncompleteCategoryFormWithFields(forms.ModelForm):
         fields = ('name', 'slug')
         model = Category
 
+
 class IncompleteCategoryFormWithExclude(forms.ModelForm):
     """
     A form that replaces the model's url field with a custom one. This should
@@ -788,6 +791,7 @@ class UniqueTest(TestCase):
             "slug": "Django 1.0"}, instance=p)
         self.assertTrue(form.is_valid())
 
+
 class ModelToDictTests(TestCase):
     """
     Tests for forms.models.model_to_dict
@@ -824,6 +828,7 @@ class ModelToDictTests(TestCase):
         # Ensure many-to-many relation appears as a list
         self.assertIsInstance(d['categories'], list)
 
+
 class OldFormForXTests(TestCase):
     def test_base_form(self):
         self.assertEqual(Category.objects.count(), 0)
diff --git a/tests/model_forms_regress/models.py b/tests/model_forms_regress/models.py
index 2c2fd39158..396bd1eaa4 100644
--- a/tests/model_forms_regress/models.py
+++ b/tests/model_forms_regress/models.py
@@ -11,6 +11,7 @@ from django.utils._os import upath
 class Person(models.Model):
     name = models.CharField(max_length=100)
 
+
 class Triple(models.Model):
     left = models.IntegerField()
     middle = models.IntegerField()
@@ -19,9 +20,11 @@ class Triple(models.Model):
     class Meta:
         unique_together = (('left', 'middle'), ('middle', 'right'))
 
+
 class FilePathModel(models.Model):
     path = models.FilePathField(path=os.path.dirname(upath(__file__)), match=".*\.py$", blank=True)
 
+
 @python_2_unicode_compatible
 class Publication(models.Model):
     title = models.CharField(max_length=30)
@@ -30,6 +33,7 @@ class Publication(models.Model):
     def __str__(self):
         return self.title
 
+
 @python_2_unicode_compatible
 class Article(models.Model):
     headline = models.CharField(max_length=100)
@@ -38,15 +42,18 @@ class Article(models.Model):
     def __str__(self):
         return self.headline
 
+
 class CustomFileField(models.FileField):
     def save_form_data(self, instance, data):
         been_here = getattr(self, 'been_saved', False)
         assert not been_here, "save_form_data called more than once"
         setattr(self, 'been_saved', True)
 
+
 class CustomFF(models.Model):
     f = CustomFileField(upload_to='unused', blank=True)
 
+
 class RealPerson(models.Model):
     name = models.CharField(max_length=100)
 
@@ -54,20 +61,25 @@ class RealPerson(models.Model):
         if self.name.lower() == 'anonymous':
             raise ValidationError("Please specify a real name.")
 
+
 class Author(models.Model):
     publication = models.OneToOneField(Publication, null=True, blank=True)
     full_name = models.CharField(max_length=255)
 
+
 class Author1(models.Model):
     publication = models.OneToOneField(Publication, null=False)
     full_name = models.CharField(max_length=255)
 
+
 class Homepage(models.Model):
     url = models.URLField()
 
+
 class Document(models.Model):
     myfile = models.FileField(upload_to='unused', blank=True)
 
+
 class Edition(models.Model):
     author = models.ForeignKey(Person)
     publication = models.ForeignKey(Publication)
diff --git a/tests/model_forms_regress/tests.py b/tests/model_forms_regress/tests.py
index b7f4cf5979..963c7e552d 100644
--- a/tests/model_forms_regress/tests.py
+++ b/tests/model_forms_regress/tests.py
@@ -106,6 +106,7 @@ class FullyLocalizedTripleForm(forms.ModelForm):
         localized_fields = '__all__'
         fields = '__all__'
 
+
 class LocalizedModelFormTest(TestCase):
     def test_model_form_applies_localize_to_some_fields(self):
         f = PartiallyLocalizedTripleForm({'left': 10, 'middle': 10, 'right': 10})
@@ -167,6 +168,7 @@ class FilePathFieldTests(TestCase):
         names.sort()
         self.assertEqual(names, ['---------', '__init__.py', 'models.py', 'tests.py'])
 
+
 class ManyToManyCallableInitialTests(TestCase):
     def test_callable(self):
         "Regression for #10349: A callable can be provided as the initial value for an m2m field"
@@ -207,9 +209,10 @@ class CustomFieldSaveTests(TestCase):
 
         # It's enough that the form saves without error -- the custom save routine will
         # generate an AssertionError if it is called more than once during save.
-        form = CFFForm(data = {'f': None})
+        form = CFFForm(data={'f': None})
         form.save()
 
+
 class ModelChoiceIteratorTests(TestCase):
     def test_len(self):
         class Form(forms.ModelForm):
@@ -236,12 +239,14 @@ class CustomModelFormSaveMethod(TestCase):
         self.assertEqual(form.is_valid(), False)
         self.assertEqual(form.errors['__all__'], ['Please specify a real name.'])
 
+
 class ModelClassTests(TestCase):
     def test_no_model_class(self):
         class NoModelModelForm(forms.ModelForm):
             pass
         self.assertRaises(ValueError, NoModelModelForm)
 
+
 class OneToOneFieldTests(TestCase):
     def test_assignment_of_none(self):
         class AuthorForm(forms.ModelForm):
diff --git a/tests/model_formsets/models.py b/tests/model_formsets/models.py
index adeb3455a4..da79c6a573 100644
--- a/tests/model_formsets/models.py
+++ b/tests/model_formsets/models.py
@@ -17,9 +17,11 @@ class Author(models.Model):
     def __str__(self):
         return self.name
 
+
 class BetterAuthor(Author):
     write_speed = models.IntegerField()
 
+
 @python_2_unicode_compatible
 class Book(models.Model):
     author = models.ForeignKey(Author)
@@ -34,6 +36,7 @@ class Book(models.Model):
     def __str__(self):
         return self.title
 
+
 @python_2_unicode_compatible
 class BookWithCustomPK(models.Model):
     my_pk = models.DecimalField(max_digits=5, decimal_places=0, primary_key=True)
@@ -43,9 +46,11 @@ class BookWithCustomPK(models.Model):
     def __str__(self):
         return '%s: %s' % (self.my_pk, self.title)
 
+
 class Editor(models.Model):
     name = models.CharField(max_length=100)
 
+
 @python_2_unicode_compatible
 class BookWithOptionalAltEditor(models.Model):
     author = models.ForeignKey(Author)
@@ -61,6 +66,7 @@ class BookWithOptionalAltEditor(models.Model):
     def __str__(self):
         return self.title
 
+
 @python_2_unicode_compatible
 class AlternateBook(Book):
     notes = models.CharField(max_length=100)
@@ -68,6 +74,7 @@ class AlternateBook(Book):
     def __str__(self):
         return '%s - %s' % (self.title, self.notes)
 
+
 @python_2_unicode_compatible
 class AuthorMeeting(models.Model):
     name = models.CharField(max_length=100)
@@ -77,6 +84,7 @@ class AuthorMeeting(models.Model):
     def __str__(self):
         return self.name
 
+
 class CustomPrimaryKey(models.Model):
     my_pk = models.CharField(max_length=10, primary_key=True)
     some_field = models.CharField(max_length=100)
@@ -84,6 +92,7 @@ class CustomPrimaryKey(models.Model):
 
 # models for inheritance tests.
 
+
 @python_2_unicode_compatible
 class Place(models.Model):
     name = models.CharField(max_length=50)
@@ -92,6 +101,7 @@ class Place(models.Model):
     def __str__(self):
         return self.name
 
+
 @python_2_unicode_compatible
 class Owner(models.Model):
     auto_id = models.AutoField(primary_key=True)
@@ -101,12 +111,14 @@ class Owner(models.Model):
     def __str__(self):
         return "%s at %s" % (self.name, self.place)
 
+
 class Location(models.Model):
     place = models.ForeignKey(Place, unique=True)
     # this is purely for testing the data doesn't matter here :)
     lat = models.CharField(max_length=100)
     lon = models.CharField(max_length=100)
 
+
 @python_2_unicode_compatible
 class OwnerProfile(models.Model):
     owner = models.OneToOneField(Owner, primary_key=True)
@@ -115,6 +127,7 @@ class OwnerProfile(models.Model):
     def __str__(self):
         return "%s is %d" % (self.owner.name, self.age)
 
+
 @python_2_unicode_compatible
 class Restaurant(Place):
     serves_pizza = models.BooleanField(default=False)
@@ -122,6 +135,7 @@ class Restaurant(Place):
     def __str__(self):
         return self.name
 
+
 @python_2_unicode_compatible
 class Product(models.Model):
     slug = models.SlugField(unique=True)
@@ -129,6 +143,7 @@ class Product(models.Model):
     def __str__(self):
         return self.slug
 
+
 @python_2_unicode_compatible
 class Price(models.Model):
     price = models.DecimalField(max_digits=10, decimal_places=2)
@@ -140,13 +155,16 @@ class Price(models.Model):
     class Meta:
         unique_together = (('price', 'quantity'),)
 
+
 class MexicanRestaurant(Restaurant):
     serves_tacos = models.BooleanField(default=False)
 
+
 class ClassyMexicanRestaurant(MexicanRestaurant):
     restaurant = models.OneToOneField(MexicanRestaurant, parent_link=True, primary_key=True)
     tacos_are_yummy = models.BooleanField(default=False)
 
+
 # models for testing unique_together validation when a fk is involved and
 # using inlineformset_factory.
 @python_2_unicode_compatible
@@ -156,6 +174,7 @@ class Repository(models.Model):
     def __str__(self):
         return self.name
 
+
 @python_2_unicode_compatible
 class Revision(models.Model):
     repository = models.ForeignKey(Repository)
@@ -167,21 +186,25 @@ class Revision(models.Model):
     def __str__(self):
         return "%s (%s)" % (self.revision, six.text_type(self.repository))
 
+
 # models for testing callable defaults (see bug #7975). If you define a model
 # with a callable default value, you cannot rely on the initial value in a
 # form.
 class Person(models.Model):
     name = models.CharField(max_length=128)
 
+
 class Membership(models.Model):
     person = models.ForeignKey(Person)
     date_joined = models.DateTimeField(default=datetime.datetime.now)
     karma = models.IntegerField()
 
+
 # models for testing a null=True fk to a parent
 class Team(models.Model):
     name = models.CharField(max_length=100)
 
+
 @python_2_unicode_compatible
 class Player(models.Model):
     team = models.ForeignKey(Team, null=True)
@@ -190,6 +213,7 @@ class Player(models.Model):
     def __str__(self):
         return self.name
 
+
 # Models for testing custom ModelForm save methods in formsets and inline formsets
 @python_2_unicode_compatible
 class Poet(models.Model):
@@ -198,6 +222,7 @@ class Poet(models.Model):
     def __str__(self):
         return self.name
 
+
 @python_2_unicode_compatible
 class Poem(models.Model):
     poet = models.ForeignKey(Poet)
@@ -206,6 +231,7 @@ class Poem(models.Model):
     def __str__(self):
         return self.name
 
+
 @python_2_unicode_compatible
 class Post(models.Model):
     title = models.CharField(max_length=50, unique_for_date='posted', blank=True)
diff --git a/tests/model_formsets_regress/models.py b/tests/model_formsets_regress/models.py
index f94ad51929..58eed6a22b 100644
--- a/tests/model_formsets_regress/models.py
+++ b/tests/model_formsets_regress/models.py
@@ -6,23 +6,29 @@ class User(models.Model):
     username = models.CharField(max_length=12, unique=True)
     serial = models.IntegerField()
 
+
 class UserSite(models.Model):
     user = models.ForeignKey(User, to_field="username")
     data = models.IntegerField()
 
+
 class Place(models.Model):
     name = models.CharField(max_length=50)
 
+
 class Restaurant(Place):
     pass
 
+
 class Manager(models.Model):
     retaurant = models.ForeignKey(Restaurant)
     name = models.CharField(max_length=50)
 
+
 class Network(models.Model):
     name = models.CharField(max_length=15)
 
+
 @python_2_unicode_compatible
 class Host(models.Model):
     network = models.ForeignKey(Network)
diff --git a/tests/model_formsets_regress/tests.py b/tests/model_formsets_regress/tests.py
index f8a5b7b3ac..7d400d2f87 100644
--- a/tests/model_formsets_regress/tests.py
+++ b/tests/model_formsets_regress/tests.py
@@ -330,6 +330,7 @@ class FormfieldCallbackTests(TestCase):
                              formfield_callback=callback)
         self.assertCallbackCalled(callback)
 
+
 class BaseCustomDeleteFormSet(BaseFormSet):
     """
     A formset mix-in that lets a form decide if it's to be deleted.
diff --git a/tests/model_inheritance/models.py b/tests/model_inheritance/models.py
index 020bb35bc7..7f5702da59 100644
--- a/tests/model_inheritance/models.py
+++ b/tests/model_inheritance/models.py
@@ -20,6 +20,7 @@ from django.utils.encoding import python_2_unicode_compatible
 # Abstract base classes
 #
 
+
 @python_2_unicode_compatible
 class CommonInfo(models.Model):
     name = models.CharField(max_length=50)
@@ -32,18 +33,22 @@ class CommonInfo(models.Model):
     def __str__(self):
         return '%s %s' % (self.__class__.__name__, self.name)
 
+
 class Worker(CommonInfo):
     job = models.CharField(max_length=50)
 
+
 class Student(CommonInfo):
     school_class = models.CharField(max_length=10)
 
     class Meta:
         pass
 
+
 class StudentWorker(Student, Worker):
     pass
 
+
 #
 # Abstract base classes with related models
 #
@@ -51,6 +56,7 @@ class StudentWorker(Student, Worker):
 class Post(models.Model):
     title = models.CharField(max_length=50)
 
+
 @python_2_unicode_compatible
 class Attachment(models.Model):
     post = models.ForeignKey(Post, related_name='attached_%(class)s_set')
@@ -62,12 +68,15 @@ class Attachment(models.Model):
     def __str__(self):
         return self.content
 
+
 class Comment(Attachment):
     is_spam = models.BooleanField(default=False)
 
+
 class Link(Attachment):
     url = models.URLField()
 
+
 #
 # Multi-table inheritance
 #
@@ -79,6 +88,7 @@ class Chef(models.Model):
     def __str__(self):
         return "%s the chef" % self.name
 
+
 @python_2_unicode_compatible
 class Place(models.Model):
     name = models.CharField(max_length=50)
@@ -87,6 +97,7 @@ class Place(models.Model):
     def __str__(self):
         return "%s the place" % self.name
 
+
 class Rating(models.Model):
     rating = models.IntegerField(null=True, blank=True)
 
@@ -94,6 +105,7 @@ class Rating(models.Model):
         abstract = True
         ordering = ['-rating']
 
+
 @python_2_unicode_compatible
 class Restaurant(Place, Rating):
     serves_hot_dogs = models.BooleanField(default=False)
@@ -106,6 +118,7 @@ class Restaurant(Place, Rating):
     def __str__(self):
         return "%s the restaurant" % self.name
 
+
 @python_2_unicode_compatible
 class ItalianRestaurant(Restaurant):
     serves_gnocchi = models.BooleanField(default=False)
@@ -113,6 +126,7 @@ class ItalianRestaurant(Restaurant):
     def __str__(self):
         return "%s the italian restaurant" % self.name
 
+
 @python_2_unicode_compatible
 class Supplier(Place):
     customers = models.ManyToManyField(Restaurant, related_name='provider')
@@ -120,6 +134,7 @@ class Supplier(Place):
     def __str__(self):
         return "%s the supplier" % self.name
 
+
 @python_2_unicode_compatible
 class ParkingLot(Place):
     # An explicit link to the parent (we can control the attribute name).
@@ -129,6 +144,7 @@ class ParkingLot(Place):
     def __str__(self):
         return "%s the parking lot" % self.name
 
+
 #
 # Abstract base classes with related models where the sub-class has the
 # same name in a different app and inherits from the same abstract base
@@ -141,6 +157,7 @@ class ParkingLot(Place):
 class Title(models.Model):
     title = models.CharField(max_length=50)
 
+
 class NamedURL(models.Model):
     title = models.ForeignKey(Title, related_name='attached_%(app_label)s_%(class)s_set')
     url = models.URLField()
@@ -148,6 +165,7 @@ class NamedURL(models.Model):
     class Meta:
         abstract = True
 
+
 @python_2_unicode_compatible
 class Copy(NamedURL):
     content = models.TextField()
@@ -155,16 +173,20 @@ class Copy(NamedURL):
     def __str__(self):
         return self.content
 
+
 class Mixin(object):
     def __init__(self):
         self.other_attr = 1
         super(Mixin, self).__init__()
 
+
 class MixinModel(models.Model, Mixin):
     pass
 
+
 class Base(models.Model):
     titles = models.ManyToManyField(Title)
 
+
 class SubBase(Base):
     sub_id = models.IntegerField(primary_key=True)
diff --git a/tests/model_inheritance_regress/models.py b/tests/model_inheritance_regress/models.py
index 04febf54a6..53752b6948 100644
--- a/tests/model_inheritance_regress/models.py
+++ b/tests/model_inheritance_regress/models.py
@@ -5,6 +5,7 @@ import datetime
 from django.db import models
 from django.utils.encoding import python_2_unicode_compatible
 
+
 @python_2_unicode_compatible
 class Place(models.Model):
     name = models.CharField(max_length=50)
@@ -16,6 +17,7 @@ class Place(models.Model):
     def __str__(self):
         return "%s the place" % self.name
 
+
 @python_2_unicode_compatible
 class Restaurant(Place):
     serves_hot_dogs = models.BooleanField(default=False)
@@ -24,6 +26,7 @@ class Restaurant(Place):
     def __str__(self):
         return "%s the restaurant" % self.name
 
+
 @python_2_unicode_compatible
 class ItalianRestaurant(Restaurant):
     serves_gnocchi = models.BooleanField(default=False)
@@ -31,6 +34,7 @@ class ItalianRestaurant(Restaurant):
     def __str__(self):
         return "%s the italian restaurant" % self.name
 
+
 @python_2_unicode_compatible
 class ParkingLot(Place):
     # An explicit link to the parent (we can control the attribute name).
@@ -40,16 +44,19 @@ class ParkingLot(Place):
     def __str__(self):
         return "%s the parking lot" % self.name
 
+
 class ParkingLot2(Place):
     # In lieu of any other connector, an existing OneToOneField will be
     # promoted to the primary key.
     parent = models.OneToOneField(Place)
 
+
 class ParkingLot3(Place):
     # The parent_link connector need not be the pk on the model.
     primary_key = models.AutoField(primary_key=True)
     parent = models.OneToOneField(Place, parent_link=True)
 
+
 class ParkingLot4(models.Model):
     # Test parent_link connector can be discovered in abstract classes.
     parent = models.OneToOneField(Place, parent_link=True)
@@ -57,31 +64,40 @@ class ParkingLot4(models.Model):
     class Meta:
         abstract = True
 
+
 class ParkingLot4A(ParkingLot4, Place):
     pass
 
+
 class ParkingLot4B(Place, ParkingLot4):
     pass
 
+
 class Supplier(models.Model):
     restaurant = models.ForeignKey(Restaurant)
 
+
 class Wholesaler(Supplier):
     retailer = models.ForeignKey(Supplier, related_name='wholesale_supplier')
 
+
 class Parent(models.Model):
     created = models.DateTimeField(default=datetime.datetime.now)
 
+
 class Child(Parent):
     name = models.CharField(max_length=10)
 
+
 class SelfRefParent(models.Model):
     parent_data = models.IntegerField()
     self_data = models.ForeignKey('self', null=True)
 
+
 class SelfRefChild(SelfRefParent):
     child_data = models.IntegerField()
 
+
 @python_2_unicode_compatible
 class Article(models.Model):
     headline = models.CharField(max_length=100)
@@ -93,24 +109,30 @@ class Article(models.Model):
     def __str__(self):
         return self.headline
 
+
 class ArticleWithAuthor(Article):
     author = models.CharField(max_length=100)
 
+
 class M2MBase(models.Model):
     articles = models.ManyToManyField(Article)
 
+
 class M2MChild(M2MBase):
     name = models.CharField(max_length=50)
 
+
 class Evaluation(Article):
     quality = models.IntegerField()
 
     class Meta:
         abstract = True
 
+
 class QualityControl(Evaluation):
     assignee = models.CharField(max_length=50)
 
+
 @python_2_unicode_compatible
 class BaseM(models.Model):
     base_name = models.CharField(max_length=100)
@@ -118,6 +140,7 @@ class BaseM(models.Model):
     def __str__(self):
         return self.base_name
 
+
 @python_2_unicode_compatible
 class DerivedM(BaseM):
     customPK = models.IntegerField(primary_key=True)
@@ -127,6 +150,7 @@ class DerivedM(BaseM):
         return "PK = %d, base_name = %s, derived_name = %s" % (
             self.customPK, self.base_name, self.derived_name)
 
+
 class AuditBase(models.Model):
     planned_date = models.DateField()
 
@@ -134,13 +158,16 @@ class AuditBase(models.Model):
         abstract = True
         verbose_name_plural = 'Audits'
 
+
 class CertificationAudit(AuditBase):
     class Meta(AuditBase.Meta):
         abstract = True
 
+
 class InternalCertificationAudit(CertificationAudit):
     auditing_dept = models.CharField(max_length=20)
 
+
 # Check that abstract classes don't get m2m tables autocreated.
 @python_2_unicode_compatible
 class Person(models.Model):
@@ -152,6 +179,7 @@ class Person(models.Model):
     def __str__(self):
         return self.name
 
+
 @python_2_unicode_compatible
 class AbstractEvent(models.Model):
     name = models.CharField(max_length=100)
@@ -164,35 +192,44 @@ class AbstractEvent(models.Model):
     def __str__(self):
         return self.name
 
+
 class BirthdayParty(AbstractEvent):
     pass
 
+
 class BachelorParty(AbstractEvent):
     pass
 
+
 class MessyBachelorParty(BachelorParty):
     pass
 
+
 # Check concrete -> abstract -> concrete inheritance
 class SearchableLocation(models.Model):
     keywords = models.CharField(max_length=256)
 
+
 class Station(SearchableLocation):
     name = models.CharField(max_length=128)
 
     class Meta:
         abstract = True
 
+
 class BusStation(Station):
     bus_routes = models.CommaSeparatedIntegerField(max_length=128)
     inbound = models.BooleanField(default=False)
 
+
 class TrainStation(Station):
     zone = models.IntegerField()
 
+
 class User(models.Model):
     username = models.CharField(max_length=30, unique=True)
 
+
 class Profile(User):
     profile_id = models.AutoField(primary_key=True)
     extra = models.CharField(max_length=30, blank=True)
diff --git a/tests/model_inheritance_select_related/models.py b/tests/model_inheritance_select_related/models.py
index 46c67cf07d..81f267589c 100644
--- a/tests/model_inheritance_select_related/models.py
+++ b/tests/model_inheritance_select_related/models.py
@@ -18,6 +18,7 @@ class Place(models.Model):
     def __str__(self):
         return "%s the place" % self.name
 
+
 @python_2_unicode_compatible
 class Restaurant(Place):
     serves_sushi = models.BooleanField(default=False)
@@ -26,6 +27,7 @@ class Restaurant(Place):
     def __str__(self):
         return "%s the restaurant" % self.name
 
+
 @python_2_unicode_compatible
 class Person(models.Model):
     name = models.CharField(max_length=50)
diff --git a/tests/model_validation/models.py b/tests/model_validation/models.py
index d2e77cbccc..dfe6d62996 100644
--- a/tests/model_validation/models.py
+++ b/tests/model_validation/models.py
@@ -39,6 +39,7 @@ class ManyToManyRel(models.Model):
         # Models created as unmanaged as these aren't ever queried
         managed = False
 
+
 class FKRel(models.Model):
     thing1 = models.ForeignKey(ThingWithIterableChoices, related_name='+')
     thing2 = models.ForeignKey(ThingWithIterableChoices, related_name='+')
diff --git a/tests/modeladmin/models.py b/tests/modeladmin/models.py
index 27f54821d6..8f57a9fa82 100644
--- a/tests/modeladmin/models.py
+++ b/tests/modeladmin/models.py
@@ -16,6 +16,7 @@ class Band(models.Model):
     def __str__(self):
         return self.name
 
+
 class Concert(models.Model):
     main_band = models.ForeignKey(Band, related_name='main_concerts')
     opening_band = models.ForeignKey(Band, related_name='opening_concerts',
@@ -27,6 +28,7 @@ class Concert(models.Model):
         (3, 'Bus')
     ), blank=True)
 
+
 class ValidationTestModel(models.Model):
     name = models.CharField(max_length=100)
     slug = models.SlugField()
@@ -40,5 +42,6 @@ class ValidationTestModel(models.Model):
     def decade_published_in(self):
         return self.pub_date.strftime('%Y')[:3] + "0's"
 
+
 class ValidationTestInlineModel(models.Model):
     parent = models.ForeignKey(ValidationTestModel)
diff --git a/tests/multiple_database/models.py b/tests/multiple_database/models.py
index 00534c870c..fc5b28ad92 100644
--- a/tests/multiple_database/models.py
+++ b/tests/multiple_database/models.py
@@ -18,10 +18,12 @@ class Review(models.Model):
     class Meta:
         ordering = ('source',)
 
+
 class PersonManager(models.Manager):
     def get_by_natural_key(self, name):
         return self.get(name=name)
 
+
 @python_2_unicode_compatible
 class Person(models.Model):
     objects = PersonManager()
@@ -33,6 +35,7 @@ class Person(models.Model):
     class Meta:
         ordering = ('name',)
 
+
 # This book manager doesn't do anything interesting; it just
 # exists to strip out the 'extra_arg' argument to certain
 # calls. This argument is used to establish that the BookManager
@@ -46,6 +49,7 @@ class BookManager(models.Manager):
         kwargs.pop('extra_arg', None)
         return super(BookManager, self).get_or_create(*args, **kwargs)
 
+
 @python_2_unicode_compatible
 class Book(models.Model):
     objects = BookManager()
@@ -62,6 +66,7 @@ class Book(models.Model):
     class Meta:
         ordering = ('title',)
 
+
 @python_2_unicode_compatible
 class Pet(models.Model):
     name = models.CharField(max_length=100)
@@ -73,6 +78,7 @@ class Pet(models.Model):
     class Meta:
         ordering = ('name',)
 
+
 class UserProfile(models.Model):
     user = models.OneToOneField(User, null=True)
     flavor = models.CharField(max_length=100)