Removed Django 1.7 MIDDLEWARE_CLASSES upgrade check.

django/core/checks/__init__.py

@@ -7,7 +7,6 @@ from .messages import (CheckMessage,
 from .registry import register, run_checks, tag_exists, Tags
 
 # Import these to force registration of checks
-import django.core.checks.compatibility.django_1_7_0  # NOQA
 import django.core.checks.model_checks  # NOQA
 import django.core.checks.security.base  # NOQA
 import django.core.checks.security.csrf  # NOQA

django/core/checks/compatibility/django_1_7_0.py

@@ -1,36 +0,0 @@
-from __future__ import unicode_literals
-
-from .. import Tags, Warning, register
-
-
-@register(Tags.compatibility)
-def check_1_7_compatibility(**kwargs):
-    errors = []
-    errors.extend(_check_middleware_classes(**kwargs))
-    return errors
-
-
-def _check_middleware_classes(app_configs=None, **kwargs):
-    """
-    Checks if the user has *not* overridden the ``MIDDLEWARE_CLASSES`` setting &
-    warns them about the global default changes.
-    """
-    from django.conf import settings
-
-    # MIDDLEWARE_CLASSES is overridden by default by startproject. If users
-    # have removed this override then we'll warn them about the default changes.
-    if not settings.is_overridden('MIDDLEWARE_CLASSES'):
-        return [
-            Warning(
-                "MIDDLEWARE_CLASSES is not set.",
-                hint=("Django 1.7 changed the global defaults for the MIDDLEWARE_CLASSES. "
-                      "django.contrib.sessions.middleware.SessionMiddleware, "
-                      "django.contrib.auth.middleware.AuthenticationMiddleware, and "
-                      "django.contrib.messages.middleware.MessageMiddleware were removed from the defaults. "
-                      "If your project needs these middleware then you should configure this setting."),
-                obj=None,
-                id='1_7.W001',
-            )
-        ]
-    else:
-        return []

docs/ref/checks.txt

@@ -182,7 +182,7 @@ that might occur as a result of a version upgrade.
   ``django.contrib.auth.middleware.AuthenticationMiddleware``, and
   ``django.contrib.messages.middleware.MessageMiddleware`` were removed from
   the defaults. If your project needs these middleware then you should
-  configure this setting.
+  configure this setting. *This check was removed in Django 1.9*.
 
 Admin
 -----

tests/check_framework/tests.py

@@ -4,11 +4,8 @@ from __future__ import unicode_literals
 import sys
 
 from django.apps import apps
-from django.conf import settings
 from django.core import checks
 from django.core.checks import Error, Warning
-from django.core.checks.compatibility.django_1_7_0 import \
-    check_1_7_compatibility
 from django.core.checks.registry import CheckRegistry
 from django.core.management import call_command
 from django.core.management.base import CommandError
@@ -112,40 +109,6 @@ class MessageTests(TestCase):
         self.assertEqual(force_text(e), expected)
 
 
-class Django_1_7_0_CompatibilityChecks(TestCase):
-
-    @override_settings(MIDDLEWARE_CLASSES=['django.contrib.sessions.middleware.SessionMiddleware'])
-    def test_middleware_classes_overridden(self):
-        errors = check_1_7_compatibility()
-        self.assertEqual(errors, [])
-
-    def test_middleware_classes_not_set_explicitly(self):
-        # If MIDDLEWARE_CLASSES was set explicitly, temporarily pretend it wasn't
-        middleware_classes_overridden = False
-        if 'MIDDLEWARE_CLASSES' in settings._wrapped._explicit_settings:
-            middleware_classes_overridden = True
-            settings._wrapped._explicit_settings.remove('MIDDLEWARE_CLASSES')
-        try:
-            errors = check_1_7_compatibility()
-            expected = [
-                checks.Warning(
-                    "MIDDLEWARE_CLASSES is not set.",
-                    hint=("Django 1.7 changed the global defaults for the MIDDLEWARE_CLASSES. "
-                          "django.contrib.sessions.middleware.SessionMiddleware, "
-                          "django.contrib.auth.middleware.AuthenticationMiddleware, and "
-                          "django.contrib.messages.middleware.MessageMiddleware were removed from the defaults. "
-                          "If your project needs these middleware then you should configure this setting."),
-                    obj=None,
-                    id='1_7.W001',
-                )
-            ]
-            self.assertEqual(errors, expected)
-        finally:
-            # Restore settings value
-            if middleware_classes_overridden:
-                settings._wrapped._explicit_settings.add('MIDDLEWARE_CLASSES')
-
-
 def simple_system_check(**kwargs):
     simple_system_check.kwargs = kwargs
     return []

tests/runtests.py

@@ -135,8 +135,6 @@ def setup(verbosity, test_labels):
     settings.LANGUAGE_CODE = 'en'
     settings.SITE_ID = 1
     settings.MIDDLEWARE_CLASSES = ALWAYS_MIDDLEWARE_CLASSES
-    # Ensure the middleware classes are seen as overridden otherwise we get a compatibility warning.
-    settings._explicit_settings.add('MIDDLEWARE_CLASSES')
     settings.MIGRATION_MODULES = {
         # these 'tests.migrations' modules don't actually exist, but this lets
         # us skip creating migrations for the test models.