Whitespace cleanup.

* Removed trailing whitespace.
* Added newline to EOF if missing.
* Removed blank lines at EOF.
* Removed some stray tabs.

tests/admin_widgets/widgetadmin.py

@@ -6,10 +6,12 @@ from . import models
 class WidgetAdmin(admin.AdminSite):
     pass
 
+
 class CarAdmin(admin.ModelAdmin):
     list_display = ['make', 'model', 'owner']
     list_editable = ['owner']
 
+
 class CarTireAdmin(admin.ModelAdmin):
     def formfield_for_foreignkey(self, db_field, request, **kwargs):
         if db_field.name == "car":
@@ -17,6 +19,7 @@ class CarTireAdmin(admin.ModelAdmin):
             return db_field.formfield(**kwargs)
         return super(CarTireAdmin, self).formfield_for_foreignkey(db_field, request, **kwargs)
 
+
 class EventAdmin(admin.ModelAdmin):
     raw_id_fields = ['main_band', 'supporting_bands']
 
@@ -44,4 +47,4 @@ site.register(models.Advisor)
 
 site.register(models.School, SchoolAdmin)
 
-site.register(models.Profile)
+site.register(models.Profile)