Fixed #24149 -- Normalized tuple settings to lists.

36 files changed, 174 insertions, 171 deletions

diff --git a/tests/admin_changelist/tests.py b/tests/admin_changelist/tests.py
index 5ee5a512db..16b56aef86 100644
--- a/tests/admin_changelist/tests.py
+++ b/tests/admin_changelist/tests.py
@@ -664,7 +664,7 @@ class AdminLogNodeTestCase(TestCase):
         self.assertEqual(template.render(context), '')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF="admin_changelist.urls")
 class SeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):
 
diff --git a/tests/admin_custom_urls/tests.py b/tests/admin_custom_urls/tests.py
index ea3c0704b3..56827c08c4 100644
--- a/tests/admin_custom_urls/tests.py
+++ b/tests/admin_custom_urls/tests.py
@@ -8,7 +8,7 @@ from django.test import TestCase, override_settings
 from .models import Action, Person, Car
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF='admin_custom_urls.urls',)
 class AdminCustomUrlsTest(TestCase):
     """
@@ -80,7 +80,7 @@ class AdminCustomUrlsTest(TestCase):
         self.assertContains(response, 'value="path/to/html/document.html"')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF='admin_custom_urls.urls',)
 class CustomRedirects(TestCase):
     fixtures = ['users.json', 'actions.json']
diff --git a/tests/admin_docs/tests.py b/tests/admin_docs/tests.py
index 2b0f6dc065..5ba0e2a0bc 100644
--- a/tests/admin_docs/tests.py
+++ b/tests/admin_docs/tests.py
@@ -13,7 +13,7 @@ from .models import Person, Company
 
 
 @override_settings(
-    PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+    PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_docs.urls')
 @modify_settings(INSTALLED_APPS={'append': 'django.contrib.admindocs'})
 class AdminDocsTestCase(TestCase):
diff --git a/tests/admin_inlines/tests.py b/tests/admin_inlines/tests.py
index ed931a0cc1..fe481994d0 100644
--- a/tests/admin_inlines/tests.py
+++ b/tests/admin_inlines/tests.py
@@ -21,7 +21,7 @@ from .models import (Holder, Inner, Holder2, Inner2, Holder3, Inner3, Person,
 INLINE_CHANGELINK_HTML = 'class="inlinechangelink">Change</a>'
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF="admin_inlines.urls")
 class TestInline(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -346,7 +346,7 @@ class TestInline(TestCase):
         self.assertNotContains(response, INLINE_CHANGELINK_HTML)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF="admin_inlines.urls")
 class TestInlineMedia(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -423,7 +423,7 @@ class TestInlineAdminForm(TestCase):
             self.assertEqual(iaf2.original_content_type_id, poll_ct.id)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_inlines.urls")
 class TestInlineProtectedOnDelete(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -650,7 +650,7 @@ class TestInlinePermissions(TestCase):
         self.assertContains(response, 'id="id_inner2_set-0-DELETE"')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF="admin_inlines.urls")
 class SeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):
 
diff --git a/tests/admin_views/tests.py b/tests/admin_views/tests.py
index 090546c474..de3861d551 100644
--- a/tests/admin_views/tests.py
+++ b/tests/admin_views/tests.py
@@ -62,7 +62,7 @@ ERROR_MESSAGE = "Please enter the correct username and password \
 for a staff account. Note that both fields may be case-sensitive."
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF="admin_views.urls",
                    USE_I18N=True, USE_L10N=False, LANGUAGE_CODE='en')
 class AdminViewBasicTestCase(TestCase):
@@ -888,7 +888,7 @@ class AdminCustomTemplateTests(AdminViewBasicTestCase):
         self.assertTemplateUsed(response, 'custom_filter_template.html')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF="admin_views.urls")
 class AdminViewFormUrlTest(TestCase):
     fixtures = ["admin-views-users.xml"]
@@ -919,7 +919,7 @@ class AdminViewFormUrlTest(TestCase):
         self.assertContains(response, 'value="overridden_value"')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF="admin_views.urls")
 class AdminJavaScriptTest(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -961,7 +961,7 @@ class AdminJavaScriptTest(TestCase):
             self.assertNotContains(response, 'inlines.min.js')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class SaveAsTests(TestCase):
     fixtures = ['admin-views-users.xml', 'admin-views-person.xml']
@@ -1074,7 +1074,7 @@ def get_perm(Model, perm):
     return Permission.objects.get(content_type=ct, codename=perm)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminViewPermissionsTest(TestCase):
     """Tests for Admin Views Permissions."""
@@ -1762,7 +1762,7 @@ class AdminViewPermissionsTest(TestCase):
         self.client.get('/test_admin/admin7/logout/')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminViewsNoUrlTest(TestCase):
     """Regression test for #17333"""
@@ -1794,7 +1794,7 @@ class AdminViewsNoUrlTest(TestCase):
 
 
 @skipUnlessDBFeature('can_defer_constraint_checks')
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminViewDeletedObjectsTest(TestCase):
     fixtures = ['admin-views-users.xml', 'deleted-objects.xml']
@@ -1909,7 +1909,7 @@ class AdminViewDeletedObjectsTest(TestCase):
         self.assertContains(response, should_contain)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class TestGenericRelations(TestCase):
     fixtures = ['admin-views-users.xml', 'deleted-objects.xml']
@@ -1924,7 +1924,7 @@ class TestGenericRelations(TestCase):
         self.assertContains(response, "%s</td>" % plot)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminViewStringPrimaryKeyTest(TestCase):
     fixtures = ['admin-views-users.xml', 'string-primary-key.xml']
@@ -2079,7 +2079,7 @@ class AdminViewStringPrimaryKeyTest(TestCase):
         )
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class SecureViewTests(TestCase):
     """
@@ -2099,7 +2099,7 @@ class SecureViewTests(TestCase):
         self.assertEqual(response.context[REDIRECT_FIELD_NAME], secure_url)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminViewUnicodeTest(TestCase):
     fixtures = ['admin-views-unicode.xml']
@@ -2151,7 +2151,7 @@ class AdminViewUnicodeTest(TestCase):
         self.assertRedirects(response, '/test_admin/admin/admin_views/book/')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminViewListEditable(TestCase):
     fixtures = ['admin-views-users.xml', 'admin-views-person.xml']
@@ -2525,7 +2525,7 @@ class AdminViewListEditable(TestCase):
         self.assertContains(response, '<th class="field-id"><a href="%s">%d</a></th>' % (link2, story2.id), 1)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminSearchTest(TestCase):
     fixtures = ['admin-views-users', 'multiple-child-classes',
@@ -2609,7 +2609,7 @@ class AdminSearchTest(TestCase):
             html=True)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminInheritedInlinesTest(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -2694,7 +2694,7 @@ class AdminInheritedInlinesTest(TestCase):
         self.assertEqual(Persona.objects.all()[0].accounts.count(), 2)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminActionsTest(TestCase):
     fixtures = ['admin-views-users.xml', 'admin-views-actions.xml']
@@ -2963,7 +2963,7 @@ action)</option>
         self.assertEqual(response.template_name, 'admin/popup_response.html')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class TestCustomChangeList(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -2989,7 +2989,7 @@ class TestCustomChangeList(TestCase):
         self.assertNotContains(response, 'First Gadget')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class TestInlineNotEditable(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -3006,7 +3006,7 @@ class TestInlineNotEditable(TestCase):
         self.assertEqual(response.status_code, 200)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminCustomQuerysetTest(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -3251,7 +3251,7 @@ class AdminCustomQuerysetTest(TestCase):
         self.assertEqual(self.client.get('/test_admin/admin/admin_views/filteredmanager/2/history/').status_code, 200)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminInlineFileUploadTest(TestCase):
     fixtures = ['admin-views-users.xml', 'admin-views-actions.xml']
@@ -3295,7 +3295,7 @@ class AdminInlineFileUploadTest(TestCase):
         self.assertContains(response, b"Currently")
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminInlineTests(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -3611,7 +3611,7 @@ class AdminInlineTests(TestCase):
         self.assertEqual(Category.objects.get(id=4).order, 0)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class NeverCacheTests(TestCase):
     fixtures = ['admin-views-users.xml', 'admin-views-colors.xml', 'admin-views-fabrics.xml']
@@ -3682,7 +3682,7 @@ class NeverCacheTests(TestCase):
         self.assertEqual(get_max_age(response), None)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class PrePopulatedTest(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -3715,7 +3715,7 @@ class PrePopulatedTest(TestCase):
         self.assertContains(response, "maxLength: 1000")  # instead of 1,000
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class SeleniumAdminViewsFirefoxTests(AdminSeleniumWebDriverTestCase):
 
@@ -3944,7 +3944,7 @@ class SeleniumAdminViewsIETests(SeleniumAdminViewsFirefoxTests):
     webdriver_class = 'selenium.webdriver.ie.webdriver.WebDriver'
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class ReadonlyTest(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -4052,7 +4052,7 @@ class ReadonlyTest(TestCase):
         self.assertNotContains(response, "Some help text for the date (with unicode ŠĐĆŽćžšđ)")
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class LimitChoicesToInAdminTest(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -4076,7 +4076,7 @@ class LimitChoicesToInAdminTest(TestCase):
         self.assertNotContains(response, marley.username)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class RawIdFieldsTest(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -4153,7 +4153,7 @@ class RawIdFieldsTest(TestCase):
         self.assertContains(response2, "Palin")
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class UserAdminTest(TestCase):
     """
@@ -4297,7 +4297,7 @@ class UserAdminTest(TestCase):
         self.assertEqual(response.context['form_url'], 'pony')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class GroupAdminTest(TestCase):
     """
@@ -4329,7 +4329,7 @@ class GroupAdminTest(TestCase):
             self.assertEqual(response.status_code, 200)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class CSSTest(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -4451,7 +4451,7 @@ except ImportError:
 
 
 @unittest.skipUnless(docutils, "no docutils installed.")
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 @modify_settings(INSTALLED_APPS={'append': ['django.contrib.admindocs', 'django.contrib.flatpages']})
 class AdminDocsTest(TestCase):
@@ -4493,7 +4493,7 @@ class AdminDocsTest(TestCase):
 
 
 @override_settings(
-    PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+    PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls",
     TEMPLATES=[{
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
@@ -4522,7 +4522,7 @@ class ValidXHTMLTests(TestCase):
         self.assertNotContains(response, ' xml:lang=""')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF="admin_views.urls",
                    USE_THOUSAND_SEPARATOR=True, USE_L10N=True)
 class DateHierarchyTests(TestCase):
@@ -4645,7 +4645,7 @@ class DateHierarchyTests(TestCase):
             self.assert_non_localized_year(response, 2005)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminCustomSaveRelatedTests(TestCase):
     """
@@ -4714,7 +4714,7 @@ class AdminCustomSaveRelatedTests(TestCase):
         self.assertEqual(['Catherine Stone', 'Paul Stone'], children_names)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminViewLogoutTest(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -4740,7 +4740,7 @@ class AdminViewLogoutTest(TestCase):
         self.assertContains(response, '<input type="hidden" name="next" value="/test_admin/admin/" />')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminUserMessageTest(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -4795,7 +4795,7 @@ class AdminUserMessageTest(TestCase):
                             html=True)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminKeepChangeListFiltersTests(TestCase):
     fixtures = ['admin-views-users.xml']
@@ -5078,7 +5078,7 @@ class NamespacedAdminKeepChangeListFiltersTests(AdminKeepChangeListFiltersTests)
     admin_site = site2
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class TestLabelVisibility(TestCase):
     """ #11277 -Labels of hidden fields in admin were not hidden. """
@@ -5119,7 +5119,7 @@ class TestLabelVisibility(TestCase):
         self.assertContains(response, '<div class="form-row hidden')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class AdminViewOnSiteTests(TestCase):
     fixtures = ['admin-views-users.xml', 'admin-views-restaurants.xml']
@@ -5237,7 +5237,7 @@ class AdminViewOnSiteTests(TestCase):
         self.assertIsNone(model_admin.get_view_on_site_url(Worker()))
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls")
 class InlineAdminViewOnSiteTest(TestCase):
     fixtures = ['admin-views-users.xml', 'admin-views-restaurants.xml']
@@ -5287,7 +5287,7 @@ class TestEtagWithAdminView(TestCase):
 
 
 @override_settings(
-    PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+    PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF="admin_views.urls",
 )
 class GetFormsetsWithInlinesArgumentTest(TestCase):
diff --git a/tests/admin_widgets/tests.py b/tests/admin_widgets/tests.py
index c5795c87fb..c2855bb237 100644
--- a/tests/admin_widgets/tests.py
+++ b/tests/admin_widgets/tests.py
@@ -167,7 +167,7 @@ class AdminFormfieldForDBFieldTests(TestCase):
         self.assertEqual(six.text_type(f.help_text), 'Hold down "Control", or "Command" on a Mac, to select more than one.')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls')
 class AdminFormfieldForDBFieldWithRequestTests(DjangoTestCase):
     fixtures = ["admin-widgets-users.xml"]
@@ -182,7 +182,7 @@ class AdminFormfieldForDBFieldWithRequestTests(DjangoTestCase):
         self.assertContains(response, "Volkswagon Passat")
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls')
 class AdminForeignKeyWidgetChangeList(DjangoTestCase):
     fixtures = ["admin-widgets-users.xml"]
@@ -195,7 +195,7 @@ class AdminForeignKeyWidgetChangeList(DjangoTestCase):
         self.assertContains(response, '/auth/user/add/')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls')
 class AdminForeignKeyRawIdWidget(DjangoTestCase):
     fixtures = ["admin-widgets-users.xml"]
@@ -537,7 +537,7 @@ class RelatedFieldWidgetWrapperTests(DjangoTestCase):
         self.assertFalse(wrapper.can_delete_related)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls')
 class DateTimePickerSeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):
 
@@ -715,7 +715,7 @@ class DateTimePickerSeleniumIETests(DateTimePickerSeleniumFirefoxTests):
 
 @skipIf(pytz is None, "this test requires pytz")
 @override_settings(TIME_ZONE='Asia/Singapore')
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls')
 class DateTimePickerShortcutsSeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):
     available_apps = ['admin_widgets'] + AdminSeleniumWebDriverTestCase.available_apps
@@ -783,7 +783,7 @@ class DateTimePickerShortcutsSeleniumIETests(DateTimePickerShortcutsSeleniumFire
     webdriver_class = 'selenium.webdriver.ie.webdriver.WebDriver'
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls')
 class HorizontalVerticalFilterSeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):
 
@@ -1038,7 +1038,7 @@ class HorizontalVerticalFilterSeleniumIETests(HorizontalVerticalFilterSeleniumFi
     webdriver_class = 'selenium.webdriver.ie.webdriver.WebDriver'
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     ROOT_URLCONF='admin_widgets.urls')
 class AdminRawIdWidgetSeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):
     available_apps = ['admin_widgets'] + AdminSeleniumWebDriverTestCase.available_apps
@@ -1129,7 +1129,7 @@ class AdminRawIdWidgetSeleniumIETests(AdminRawIdWidgetSeleniumFirefoxTests):
     webdriver_class = 'selenium.webdriver.ie.webdriver.WebDriver'
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF='admin_widgets.urls')
 class RelatedFieldWidgetSeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):
     available_apps = ['admin_widgets'] + AdminSeleniumWebDriverTestCase.available_apps
diff --git a/tests/cache/tests.py b/tests/cache/tests.py
index db2edf5f26..c17ef12ae0 100644
--- a/tests/cache/tests.py
+++ b/tests/cache/tests.py
@@ -1508,10 +1508,10 @@ class CacheHEADTest(TestCase):
             'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
         },
     },
-    LANGUAGES=(
+    LANGUAGES=[
         ('en', 'English'),
         ('es', 'Spanish'),
-    ),
+    ],
 )
 class CacheI18nTest(TestCase):
 
diff --git a/tests/check_framework/tests.py b/tests/check_framework/tests.py
index ea4a8766bf..d15988b117 100644
--- a/tests/check_framework/tests.py
+++ b/tests/check_framework/tests.py
@@ -113,7 +113,7 @@ class MessageTests(TestCase):
 
 class Django_1_7_0_CompatibilityChecks(TestCase):
 
-    @override_settings(MIDDLEWARE_CLASSES=('django.contrib.sessions.middleware.SessionMiddleware',))
+    @override_settings(MIDDLEWARE_CLASSES=['django.contrib.sessions.middleware.SessionMiddleware'])
     def test_middleware_classes_overridden(self):
         errors = check_1_7_compatibility()
         self.assertEqual(errors, [])
diff --git a/tests/context_processors/tests.py b/tests/context_processors/tests.py
index d7c7390189..f6c6600402 100644
--- a/tests/context_processors/tests.py
+++ b/tests/context_processors/tests.py
@@ -48,7 +48,7 @@ class RequestContextProcessorTests(TestCase):
 
 @override_settings(
     DEBUG=True,
-    INTERNAL_IPS=('127.0.0.1',),
+    INTERNAL_IPS=['127.0.0.1'],
     ROOT_URLCONF='context_processors.urls',
     TEMPLATES=[{
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
diff --git a/tests/file_uploads/tests.py b/tests/file_uploads/tests.py
index 610cf13630..7036c199d0 100644
--- a/tests/file_uploads/tests.py
+++ b/tests/file_uploads/tests.py
@@ -28,7 +28,7 @@ MEDIA_ROOT = sys_tempfile.mkdtemp(dir=os.environ['DJANGO_TEST_TEMP_DIR'])
 UPLOAD_TO = os.path.join(MEDIA_ROOT, 'test_upload')
 
 
-@override_settings(MEDIA_ROOT=MEDIA_ROOT, ROOT_URLCONF='file_uploads.urls', MIDDLEWARE_CLASSES=())
+@override_settings(MEDIA_ROOT=MEDIA_ROOT, ROOT_URLCONF='file_uploads.urls', MIDDLEWARE_CLASSES=[])
 class FileUploadTests(TestCase):
 
     @classmethod
diff --git a/tests/forms_tests/tests/test_input_formats.py b/tests/forms_tests/tests/test_input_formats.py
index f939821c75..60e153db4c 100644
--- a/tests/forms_tests/tests/test_input_formats.py
+++ b/tests/forms_tests/tests/test_input_formats.py
@@ -10,7 +10,7 @@ from django.test import SimpleTestCase
 class LocalizedTimeTests(SimpleTestCase):
     def setUp(self):
         # nl/formats.py has customized TIME_INPUT_FORMATS:
-        # ('%H:%M:%S', '%H.%M:%S', '%H.%M', '%H:%M')
+        # ['%H:%M:%S', '%H.%M:%S', '%H.%M', '%H:%M']
         activate('nl')
 
     def tearDown(self):
diff --git a/tests/generic_inline_admin/tests.py b/tests/generic_inline_admin/tests.py
index 1458f6f73f..325d94c7a7 100644
--- a/tests/generic_inline_admin/tests.py
+++ b/tests/generic_inline_admin/tests.py
@@ -17,7 +17,7 @@ from .models import Episode, Media, EpisodePermanent, Category
 
 # Set TEMPLATE_DEBUG to True to ensure {% include %} will raise exceptions.
 # That is how inlines are rendered and #9498 will bubble up if it is an issue.
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    TEMPLATE_DEBUG=True,
                    ROOT_URLCONF="generic_inline_admin.urls")
 class GenericAdminViewTest(TestCase):
@@ -123,7 +123,7 @@ class GenericAdminViewTest(TestCase):
         self.assertTrue(formset.get_queryset().ordered)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF="generic_inline_admin.urls")
 class GenericInlineAdminParametersTest(TestCase):
     fixtures = ['users.xml']
@@ -270,7 +270,7 @@ class GenericInlineAdminParametersTest(TestCase):
         self.assertEqual(formset.max_num, 2)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF="generic_inline_admin.urls")
 class GenericInlineAdminWithUniqueTogetherTest(TestCase):
     fixtures = ['users.xml']
diff --git a/tests/i18n/contenttypes/tests.py b/tests/i18n/contenttypes/tests.py
index 23b1ac6c73..a93f2030f2 100644
--- a/tests/i18n/contenttypes/tests.py
+++ b/tests/i18n/contenttypes/tests.py
@@ -12,14 +12,14 @@ from django.utils import translation
 
 @override_settings(
     USE_I18N=True,
-    LOCALE_PATHS=(
+    LOCALE_PATHS=[
         os.path.join(os.path.dirname(upath(__file__)), 'locale'),
-    ),
+    ],
     LANGUAGE_CODE='en',
-    LANGUAGES=(
+    LANGUAGES=[
         ('en', 'English'),
         ('fr', 'French'),
-    ),
+    ],
 )
 class ContentTypeTests(TestCase):
     def test_verbose_name(self):
diff --git a/tests/i18n/patterns/tests.py b/tests/i18n/patterns/tests.py
index 2bf770434b..f96ac82fc4 100644
--- a/tests/i18n/patterns/tests.py
+++ b/tests/i18n/patterns/tests.py
@@ -18,19 +18,19 @@ class PermanentRedirectLocaleMiddleWare(LocaleMiddleware):
 
 @override_settings(
     USE_I18N=True,
-    LOCALE_PATHS=(
+    LOCALE_PATHS=[
         os.path.join(os.path.dirname(upath(__file__)), 'locale'),
-    ),
+    ],
     LANGUAGE_CODE='en-us',
-    LANGUAGES=(
+    LANGUAGES=[
         ('nl', 'Dutch'),
         ('en', 'English'),
         ('pt-br', 'Brazilian Portuguese'),
-    ),
-    MIDDLEWARE_CLASSES=(
+    ],
+    MIDDLEWARE_CLASSES=[
         'django.middleware.locale.LocaleMiddleware',
         'django.middleware.common.CommonMiddleware',
-    ),
+    ],
     ROOT_URLCONF='i18n.patterns.urls.default',
     TEMPLATES=[{
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
@@ -193,10 +193,10 @@ class URLRedirectTests(URLTestCaseBase):
         self.assertEqual(response.status_code, 200)
 
     @override_settings(
-        MIDDLEWARE_CLASSES=(
+        MIDDLEWARE_CLASSES=[
             'i18n.patterns.tests.PermanentRedirectLocaleMiddleWare',
             'django.middleware.common.CommonMiddleware',
-        ),
+        ],
     )
     def test_custom_redirect_class(self):
         response = self.client.get('/account/register/', HTTP_ACCEPT_LANGUAGE='en')
diff --git a/tests/i18n/test_compilation.py b/tests/i18n/test_compilation.py
index bc76a5337c..c17db0a98a 100644
--- a/tests/i18n/test_compilation.py
+++ b/tests/i18n/test_compilation.py
@@ -92,7 +92,7 @@ class PercentRenderingTests(MessageCompilationTests):
         self.addCleanup(os.unlink, os.path.join(self.test_dir, self.MO_FILE))
 
     def test_percent_symbol_escaping(self):
-        with override_settings(LOCALE_PATHS=(os.path.join(self.test_dir, 'locale'),)):
+        with override_settings(LOCALE_PATHS=[os.path.join(self.test_dir, 'locale')]):
             from django.template import Template, Context
             call_command('compilemessages', locale=[self.LOCALE], stdout=StringIO())
             with translation.override(self.LOCALE):
@@ -119,13 +119,13 @@ class MultipleLocaleCompilationTests(MessageCompilationTests):
         self.addCleanup(self.rmfile, os.path.join(localedir, self.MO_FILE_FR))
 
     def test_one_locale(self):
-        with override_settings(LOCALE_PATHS=(os.path.join(self.test_dir, 'locale'),)):
+        with override_settings(LOCALE_PATHS=[os.path.join(self.test_dir, 'locale')]):
             call_command('compilemessages', locale=['hr'], stdout=StringIO())
 
             self.assertTrue(os.path.exists(self.MO_FILE_HR))
 
     def test_multiple_locales(self):
-        with override_settings(LOCALE_PATHS=(os.path.join(self.test_dir, 'locale'),)):
+        with override_settings(LOCALE_PATHS=[os.path.join(self.test_dir, 'locale')]):
             call_command('compilemessages', locale=['hr', 'fr'], stdout=StringIO())
 
             self.assertTrue(os.path.exists(self.MO_FILE_HR))
@@ -202,14 +202,14 @@ class FuzzyTranslationTest(MessageCompilationTests):
         gettext_module._translations = {}  # flush cache or test will be useless
 
     def test_nofuzzy_compiling(self):
-        with override_settings(LOCALE_PATHS=(os.path.join(self.test_dir, 'locale'),)):
+        with override_settings(LOCALE_PATHS=[os.path.join(self.test_dir, 'locale')]):
             call_command('compilemessages', locale=[self.LOCALE], stdout=StringIO())
             with translation.override(self.LOCALE):
                 self.assertEqual(ugettext('Lenin'), force_text('Ленин'))
                 self.assertEqual(ugettext('Vodka'), force_text('Vodka'))
 
     def test_fuzzy_compiling(self):
-        with override_settings(LOCALE_PATHS=(os.path.join(self.test_dir, 'locale'),)):
+        with override_settings(LOCALE_PATHS=[os.path.join(self.test_dir, 'locale')]):
             call_command('compilemessages', locale=[self.LOCALE], fuzzy=True, stdout=StringIO())
             with translation.override(self.LOCALE):
                 self.assertEqual(ugettext('Lenin'), force_text('Ленин'))
diff --git a/tests/i18n/test_extraction.py b/tests/i18n/test_extraction.py
index 94948b203e..99d4983b43 100644
--- a/tests/i18n/test_extraction.py
+++ b/tests/i18n/test_extraction.py
@@ -721,8 +721,7 @@ class CustomLayoutExtractionTests(ExtractorTests):
             management.call_command('makemessages', locale=LOCALE, verbosity=0)
 
     @override_settings(
-        LOCALE_PATHS=(os.path.join(
-            this_directory, 'project_dir', 'project_locale'),)
+        LOCALE_PATHS=[os.path.join(this_directory, 'project_dir', 'project_locale')],
     )
     def test_project_locale_paths(self):
         """
diff --git a/tests/i18n/tests.py b/tests/i18n/tests.py
index 0b5714d6bf..cbc31828b4 100644
--- a/tests/i18n/tests.py
+++ b/tests/i18n/tests.py
@@ -42,9 +42,9 @@ from .models import Company, TestModel
 
 
 here = os.path.dirname(os.path.abspath(upath(__file__)))
-extended_locale_paths = settings.LOCALE_PATHS + (
+extended_locale_paths = settings.LOCALE_PATHS + [
     os.path.join(here, 'other', 'locale'),
-)
+]
 
 
 @contextmanager
@@ -397,7 +397,7 @@ class TranslationTests(TestCase):
         self.assertEqual(trans_real.to_language('en_US'), 'en-us')
         self.assertEqual(trans_real.to_language('sr_Lat'), 'sr-lat')
 
-    @override_settings(LOCALE_PATHS=(os.path.join(here, 'other', 'locale'),))
+    @override_settings(LOCALE_PATHS=[os.path.join(here, 'other', 'locale')])
     def test_bad_placeholder_1(self):
         """
         Error in translation file should not crash template rendering
@@ -409,7 +409,7 @@ class TranslationTests(TestCase):
             rendered = t.render(Context({'person': 'James'}))
             self.assertEqual(rendered, 'My name is James.')
 
-    @override_settings(LOCALE_PATHS=(os.path.join(here, 'other', 'locale'),))
+    @override_settings(LOCALE_PATHS=[os.path.join(here, 'other', 'locale')])
     def test_bad_placeholder_2(self):
         """
         Error in translation file should not crash template rendering
@@ -998,11 +998,11 @@ class MiscTests(TestCase):
         self.assertEqual('zh-hant', g(r))
 
     @override_settings(
-        LANGUAGES=(
+        LANGUAGES=[
             ('en', 'English'),
             ('zh-hans', 'Simplified Chinese'),
             ('zh-hant', 'Traditional Chinese'),
-        )
+        ]
     )
     def test_support_for_deprecated_chinese_language_codes(self):
         """
@@ -1112,7 +1112,7 @@ class MiscTests(TestCase):
         r.COOKIES = {}
         r.META = {'HTTP_ACCEPT_LANGUAGE': 'pt-br'}
         self.assertEqual('pt-br', g(r))
-        with self.settings(LANGUAGES=(('en', 'English'),)):
+        with self.settings(LANGUAGES=[('en', 'English')]):
             self.assertNotEqual('pt-br', g(r))
 
 
@@ -1342,14 +1342,14 @@ class MultipleLocaleActivationTests(TestCase):
 
 @override_settings(
     USE_I18N=True,
-    LANGUAGES=(
+    LANGUAGES=[
         ('en', 'English'),
         ('fr', 'French'),
-    ),
-    MIDDLEWARE_CLASSES=(
+    ],
+    MIDDLEWARE_CLASSES=[
         'django.middleware.locale.LocaleMiddleware',
         'django.middleware.common.CommonMiddleware',
-    ),
+    ],
     ROOT_URLCONF='i18n.urls',
 )
 class LocaleMiddlewareTests(TestCase):
@@ -1362,11 +1362,11 @@ class LocaleMiddlewareTests(TestCase):
         self.assertContains(response, "Yes/No")
 
     @override_settings(
-        MIDDLEWARE_CLASSES=(
+        MIDDLEWARE_CLASSES=[
             'django.contrib.sessions.middleware.SessionMiddleware',
             'django.middleware.locale.LocaleMiddleware',
             'django.middleware.common.CommonMiddleware',
-        ),
+        ],
     )
     def test_language_not_saved_to_session(self):
         """Checks that current language is not automatically saved to
@@ -1378,15 +1378,15 @@ class LocaleMiddlewareTests(TestCase):
 
 @override_settings(
     USE_I18N=True,
-    LANGUAGES=(
+    LANGUAGES=[
         ('bg', 'Bulgarian'),
         ('en-us', 'English'),
         ('pt-br', 'Portugese (Brazil)'),
-    ),
-    MIDDLEWARE_CLASSES=(
+    ],
+    MIDDLEWARE_CLASSES=[
         'django.middleware.locale.LocaleMiddleware',
         'django.middleware.common.CommonMiddleware',
-    ),
+    ],
     ROOT_URLCONF='i18n.urls'
 )
 class CountrySpecificLanguageTests(TestCase):
diff --git a/tests/logging_tests/tests.py b/tests/logging_tests/tests.py
index 65b2be4135..3e4c19ece5 100644
--- a/tests/logging_tests/tests.py
+++ b/tests/logging_tests/tests.py
@@ -185,7 +185,7 @@ class AdminEmailHandlerTest(TestCase):
         self.assertTrue(admin_email_handler.connection().fail_silently)
 
     @override_settings(
-        ADMINS=(('whatever admin', 'admin@example.com'),),
+        ADMINS=[('whatever admin', 'admin@example.com')],
         EMAIL_SUBJECT_PREFIX='-SuperAwesomeSubject-'
     )
     def test_accepts_args(self):
@@ -215,9 +215,9 @@ class AdminEmailHandlerTest(TestCase):
             admin_email_handler.filters = orig_filters
 
     @override_settings(
-        ADMINS=(('whatever admin', 'admin@example.com'),),
+        ADMINS=[('whatever admin', 'admin@example.com')],
         EMAIL_SUBJECT_PREFIX='-SuperAwesomeSubject-',
-        INTERNAL_IPS=('127.0.0.1',),
+        INTERNAL_IPS=['127.0.0.1'],
     )
     def test_accepts_args_and_request(self):
         """
@@ -250,7 +250,7 @@ class AdminEmailHandlerTest(TestCase):
             admin_email_handler.filters = orig_filters
 
     @override_settings(
-        ADMINS=(('admin', 'admin@example.com'),),
+        ADMINS=[('admin', 'admin@example.com')],
         EMAIL_SUBJECT_PREFIX='',
         DEBUG=False,
     )
@@ -295,7 +295,7 @@ class AdminEmailHandlerTest(TestCase):
         self.assertEqual(mail.outbox[0].subject, expected_subject)
 
     @override_settings(
-        ADMINS=(('admin', 'admin@example.com'),),
+        ADMINS=[('admin', 'admin@example.com')],
         DEBUG=False,
     )
     def test_uses_custom_email_backend(self):
@@ -327,7 +327,7 @@ class AdminEmailHandlerTest(TestCase):
             admin_email_handler.email_backend = orig_email_backend
 
     @override_settings(
-        ADMINS=(('whatever admin', 'admin@example.com'),),
+        ADMINS=[('whatever admin', 'admin@example.com')],
     )
     def test_emit_non_ascii(self):
         """
@@ -347,7 +347,7 @@ class AdminEmailHandlerTest(TestCase):
         self.assertIn("path:%s" % url_path, msg.body)
 
     @override_settings(
-        MANAGERS=(('manager', 'manager@example.com'),),
+        MANAGERS=[('manager', 'manager@example.com')],
         DEBUG=False,
     )
     def test_customize_send_mail_method(self):
@@ -423,7 +423,7 @@ class SecurityLoggerTest(TestCase):
             self.assertEqual(calls[0], 'dubious')
 
     @override_settings(
-        ADMINS=(('admin', 'admin@example.com'),),
+        ADMINS=[('admin', 'admin@example.com')],
         DEBUG=False,
     )
     def test_suspicious_email_admins(self):
diff --git a/tests/mail/tests.py b/tests/mail/tests.py
index 5b5c9e1c70..683f47fe31 100644
--- a/tests/mail/tests.py
+++ b/tests/mail/tests.py
@@ -606,7 +606,7 @@ class BaseEmailBackendTests(HeadersCheckMixin, object):
         message = self.get_the_message()
         self.assertEqual(message.get('subject'), '[Django] Subject')
 
-    @override_settings(ADMINS=(), MANAGERS=())
+    @override_settings(ADMINS=[], MANAGERS=[])
     def test_empty_admins(self):
         """
         Test that mail_admins/mail_managers doesn't connect to the mail server
diff --git a/tests/middleware/tests.py b/tests/middleware/tests.py
index 770d500444..c7620732b5 100644
--- a/tests/middleware/tests.py
+++ b/tests/middleware/tests.py
@@ -277,8 +277,8 @@ class CommonMiddlewareTest(TestCase):
 
 
 @override_settings(
-    IGNORABLE_404_URLS=(re.compile(r'foo'),),
-    MANAGERS=('PHB@dilbert.com',),
+    IGNORABLE_404_URLS=[re.compile(r'foo')],
+    MANAGERS=['PHB@dilbert.com'],
 )
 class BrokenLinkEmailsMiddlewareTest(TestCase):
 
diff --git a/tests/middleware_exceptions/tests.py b/tests/middleware_exceptions/tests.py
index 8c191e4ea5..9c7a24ec22 100644
--- a/tests/middleware_exceptions/tests.py
+++ b/tests/middleware_exceptions/tests.py
@@ -868,9 +868,9 @@ class MiddlewareNotUsedTests(TestCase):
         with self.assertRaises(MiddlewareNotUsed):
             MyMiddleware().process_request(request)
 
-    @override_settings(MIDDLEWARE_CLASSES=(
+    @override_settings(MIDDLEWARE_CLASSES=[
         'middleware_exceptions.tests.MyMiddleware',
-    ))
+    ])
     def test_log(self):
         with patch_logger('django.request', 'debug') as calls:
             self.client.get('/middleware_exceptions/view/')
@@ -880,9 +880,9 @@ class MiddlewareNotUsedTests(TestCase):
             "MiddlewareNotUsed: 'middleware_exceptions.tests.MyMiddleware'"
         )
 
-    @override_settings(MIDDLEWARE_CLASSES=(
+    @override_settings(MIDDLEWARE_CLASSES=[
         'middleware_exceptions.tests.MyMiddlewareWithExceptionMessage',
-    ))
+    ])
     def test_log_custom_message(self):
         with patch_logger('django.request', 'debug') as calls:
             self.client.get('/middleware_exceptions/view/')
diff --git a/tests/model_regress/test_pickle.py b/tests/model_regress/test_pickle.py
index 5348b4a495..64d2f6df5f 100644
--- a/tests/model_regress/test_pickle.py
+++ b/tests/model_regress/test_pickle.py
@@ -71,7 +71,7 @@ from django.conf import settings
 
 data = %r
 
-settings.configure(DEBUG=False, INSTALLED_APPS=('model_regress',), SECRET_KEY = "blah")
+settings.configure(DEBUG=False, INSTALLED_APPS=['model_regress'], SECRET_KEY = "blah")
 article = pickle.loads(data)
 print(article.headline)"""
         a = Article.objects.create(
diff --git a/tests/proxy_models/tests.py b/tests/proxy_models/tests.py
index cb4ea3c9eb..131bd1524f 100644
--- a/tests/proxy_models/tests.py
+++ b/tests/proxy_models/tests.py
@@ -380,7 +380,7 @@ class ProxyModelTests(TestCase):
         self.assertEqual(MyPerson(id=100), Person(id=100))
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF='proxy_models.urls',)
 class ProxyModelAdminTests(TestCase):
     fixtures = ['myhorses']
diff --git a/tests/runtests.py b/tests/runtests.py
index 6cb589b935..e232da9c63 100755
--- a/tests/runtests.py
+++ b/tests/runtests.py
@@ -50,13 +50,13 @@ ALWAYS_INSTALLED_APPS = [
     'django.contrib.staticfiles',
 ]
 
-ALWAYS_MIDDLEWARE_CLASSES = (
+ALWAYS_MIDDLEWARE_CLASSES = [
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
-)
+]
 
 
 def get_test_modules():
@@ -116,7 +116,7 @@ def setup(verbosity, test_labels):
     settings.STATIC_URL = '/static/'
     settings.STATIC_ROOT = os.path.join(TEMP_DIR, 'static')
     # Remove the following line in Django 2.0.
-    settings.TEMPLATE_DIRS = (TEMPLATE_DIR,)
+    settings.TEMPLATE_DIRS = [TEMPLATE_DIR]
     settings.TEMPLATES = [{
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
         'DIRS': [TEMPLATE_DIR],
diff --git a/tests/settings_tests/tests.py b/tests/settings_tests/tests.py
index 0befd18e29..8d39d6c1b1 100644
--- a/tests/settings_tests/tests.py
+++ b/tests/settings_tests/tests.py
@@ -441,12 +441,12 @@ class IsOverriddenTest(TestCase):
             self.assertTrue(settings.is_overridden('ALLOWED_HOSTS'))
 
 
-class TestTupleSettings(unittest.TestCase):
+class TestListSettings(unittest.TestCase):
     """
-    Make sure settings that should be tuples throw ImproperlyConfigured if they
-    are set to a string instead of a tuple.
+    Make sure settings that should be lists or tuples throw
+    ImproperlyConfigured if they are set to a string instead of a list or tuple.
     """
-    tuple_settings = (
+    list_or_tuple_settings = (
         "ALLOWED_INCLUDE_ROOTS",
         "INSTALLED_APPS",
         "TEMPLATE_DIRS",
@@ -456,8 +456,8 @@ class TestTupleSettings(unittest.TestCase):
     def test_tuple_settings(self):
         settings_module = ModuleType('fake_settings_module')
         settings_module.SECRET_KEY = 'foo'
-        for setting in self.tuple_settings:
-            setattr(settings_module, setting, ('non_tuple_value'))
+        for setting in self.list_or_tuple_settings:
+            setattr(settings_module, setting, ('non_list_or_tuple_value'))
             sys.modules['fake_settings_module'] = settings_module
             try:
                 with self.assertRaises(ImproperlyConfigured):
diff --git a/tests/staticfiles_tests/tests.py b/tests/staticfiles_tests/tests.py
index 1d5ccfc075..43cee9e636 100644
--- a/tests/staticfiles_tests/tests.py
+++ b/tests/staticfiles_tests/tests.py
@@ -33,16 +33,16 @@ TEST_SETTINGS = {
     'STATIC_URL': '/static/',
     'MEDIA_ROOT': os.path.join(TEST_ROOT, 'project', 'site_media', 'media'),
     'STATIC_ROOT': os.path.join(TEST_ROOT, 'project', 'site_media', 'static'),
-    'STATICFILES_DIRS': (
+    'STATICFILES_DIRS': [
         os.path.join(TEST_ROOT, 'project', 'documents'),
         ('prefix', os.path.join(TEST_ROOT, 'project', 'prefixed')),
-    ),
-    'STATICFILES_FINDERS': (
+    ],
+    'STATICFILES_FINDERS': [
         'django.contrib.staticfiles.finders.FileSystemFinder',
         'django.contrib.staticfiles.finders.AppDirectoriesFinder',
         'django.contrib.staticfiles.finders.DefaultStorageFinder',
-    ),
-    'INSTALLED_APPS': (
+    ],
+    'INSTALLED_APPS': [
         'django.contrib.contenttypes',
         'django.contrib.auth',
         'django.contrib.admin.apps.SimpleAdminConfig',
@@ -50,7 +50,7 @@ TEST_SETTINGS = {
         'staticfiles_tests',
         'staticfiles_tests.apps.test',
         'staticfiles_tests.apps.no_label',
-    ),
+    ],
 }
 from django.contrib.staticfiles.management.commands.collectstatic import Command as CollectstaticCommand
 
@@ -600,8 +600,8 @@ class TestHashedFiles(object):
             self.assertIn(b"other.d41d8cd98f00.css", content)
 
     @override_settings(
-        STATICFILES_DIRS=(os.path.join(TEST_ROOT, 'project', 'faulty'),),
-        STATICFILES_FINDERS=('django.contrib.staticfiles.finders.FileSystemFinder',),
+        STATICFILES_DIRS=[os.path.join(TEST_ROOT, 'project', 'faulty')],
+        STATICFILES_FINDERS=['django.contrib.staticfiles.finders.FileSystemFinder'],
     )
     def test_post_processing_failure(self):
         """
@@ -898,7 +898,7 @@ class TestDefaultStorageFinder(StaticFilesTestCase, FinderTestCase):
 
 
 @override_settings(
-    STATICFILES_FINDERS=('django.contrib.staticfiles.finders.FileSystemFinder',),
+    STATICFILES_FINDERS=['django.contrib.staticfiles.finders.FileSystemFinder'],
     STATICFILES_DIRS=[os.path.join(TEST_ROOT, 'project', 'documents')],
 )
 class TestMiscFinder(TestCase):
diff --git a/tests/template_tests/test_response.py b/tests/template_tests/test_response.py
index 3807789e63..5c73265ded 100644
--- a/tests/template_tests/test_response.py
+++ b/tests/template_tests/test_response.py
@@ -333,7 +333,7 @@ class TemplateResponseTest(SimpleTestCase):
 
 
 @override_settings(
-    MIDDLEWARE_CLASSES=list(settings.MIDDLEWARE_CLASSES) + [
+    MIDDLEWARE_CLASSES=settings.MIDDLEWARE_CLASSES + [
         'template_tests.test_response.CustomURLConfMiddleware'
     ],
     ROOT_URLCONF='template_tests.urls',
@@ -348,7 +348,7 @@ class CustomURLConfTest(SimpleTestCase):
 
 @override_settings(
     CACHE_MIDDLEWARE_SECONDS=2.0,
-    MIDDLEWARE_CLASSES=list(settings.MIDDLEWARE_CLASSES) + [
+    MIDDLEWARE_CLASSES=settings.MIDDLEWARE_CLASSES + [
         'django.middleware.cache.FetchFromCacheMiddleware',
         'django.middleware.cache.UpdateCacheMiddleware',
     ],
diff --git a/tests/test_client/tests.py b/tests/test_client/tests.py
index cf96b89a62..7059c23a81 100644
--- a/tests/test_client/tests.py
+++ b/tests/test_client/tests.py
@@ -30,7 +30,7 @@ from django.test import override_settings
 from .views import get_view, post_view, trace_view
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF='test_client.urls',)
 class ClientTest(TestCase):
     fixtures = ['testdata.json']
@@ -530,7 +530,7 @@ class ClientTest(TestCase):
 
 
 @override_settings(
-    MIDDLEWARE_CLASSES=('django.middleware.csrf.CsrfViewMiddleware',),
+    MIDDLEWARE_CLASSES=['django.middleware.csrf.CsrfViewMiddleware'],
     ROOT_URLCONF='test_client.urls',
 )
 class CSRFEnabledClientTests(TestCase):
diff --git a/tests/test_client_regress/tests.py b/tests/test_client_regress/tests.py
index 2d97823854..c97ad550d1 100644
--- a/tests/test_client_regress/tests.py
+++ b/tests/test_client_regress/tests.py
@@ -188,7 +188,7 @@ class AssertContainsTests(TestCase):
         self.assertNotContains(response, 'Bye')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF='test_client_regress.urls',)
 class AssertTemplateUsedTests(TestCase):
     fixtures = ['testdata.json']
@@ -810,7 +810,7 @@ class AssertFormsetErrorTests(TestCase):
                                     **kwargs)
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF='test_client_regress.urls',)
 class LoginTests(TestCase):
     fixtures = ['testdata']
@@ -833,7 +833,7 @@ class LoginTests(TestCase):
 
 
 @override_settings(
-    PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+    PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
     SESSION_ENGINE='test_client_regress.session',
     ROOT_URLCONF='test_client_regress.urls',
 )
@@ -879,7 +879,7 @@ class URLEscapingTests(TestCase):
         self.assertEqual(response.content, b'Hi, Arthur')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF='test_client_regress.urls',)
 class ExceptionTests(TestCase):
     fixtures = ['testdata.json']
@@ -948,7 +948,7 @@ class zzUrlconfSubstitutionTests(TestCase):
             reverse('arg_view', args=['somename'])
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF='test_client_regress.urls',)
 class ContextTests(TestCase):
     fixtures = ['testdata']
@@ -1023,7 +1023,7 @@ class ContextTests(TestCase):
         self.assertEqual(response.context['nested'], 'yes')
 
 
-@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+@override_settings(PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                    ROOT_URLCONF='test_client_regress.urls',)
 class SessionTests(TestCase):
     fixtures = ['testdata.json']
diff --git a/tests/test_sqlite.py b/tests/test_sqlite.py
index 6bce452c79..18d413a682 100644
--- a/tests/test_sqlite.py
+++ b/tests/test_sqlite.py
@@ -24,6 +24,6 @@ DATABASES = {
 SECRET_KEY = "django_tests_secret_key"
 
 # Use a fast hasher to speed up tests.
-PASSWORD_HASHERS = (
+PASSWORD_HASHERS = [
     'django.contrib.auth.hashers.MD5PasswordHasher',
-)
+]
diff --git a/tests/timezones/tests.py b/tests/timezones/tests.py
index 677d51ac2e..a8ee433464 100644
--- a/tests/timezones/tests.py
+++ b/tests/timezones/tests.py
@@ -1074,7 +1074,7 @@ class NewFormsTests(TestCase):
 
 
 @override_settings(DATETIME_FORMAT='c', TIME_ZONE='Africa/Nairobi', USE_L10N=False, USE_TZ=True,
-                  PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
+                  PASSWORD_HASHERS=['django.contrib.auth.hashers.SHA1PasswordHasher'],
                   ROOT_URLCONF='timezones.urls')
 class AdminTests(TestCase):
 
diff --git a/tests/urlpatterns_reverse/tests.py b/tests/urlpatterns_reverse/tests.py
index 50a0881a41..7b46d0a0a3 100644
--- a/tests/urlpatterns_reverse/tests.py
+++ b/tests/urlpatterns_reverse/tests.py
@@ -538,9 +538,9 @@ class RequestURLconfTests(TestCase):
         self.assertEqual(response.status_code, 404)
 
     @override_settings(
-        MIDDLEWARE_CLASSES=(
+        MIDDLEWARE_CLASSES=[
             '%s.ChangeURLconfMiddleware' % middleware.__name__,
-        )
+        ]
     )
     def test_urlconf_overridden(self):
         response = self.client.get('/test/me/')
@@ -552,18 +552,18 @@ class RequestURLconfTests(TestCase):
         self.assertEqual(response.content, b'outer:,inner:/second_test/')
 
     @override_settings(
-        MIDDLEWARE_CLASSES=(
+        MIDDLEWARE_CLASSES=[
             '%s.NullChangeURLconfMiddleware' % middleware.__name__,
-        )
+        ]
     )
     def test_urlconf_overridden_with_null(self):
         self.assertRaises(ImproperlyConfigured, self.client.get, '/test/me/')
 
     @override_settings(
-        MIDDLEWARE_CLASSES=(
+        MIDDLEWARE_CLASSES=[
             '%s.ChangeURLconfMiddleware' % middleware.__name__,
             '%s.ReverseInnerInResponseMiddleware' % middleware.__name__,
-        )
+        ]
     )
     def test_reverse_inner_in_response_middleware(self):
         """
@@ -575,10 +575,10 @@ class RequestURLconfTests(TestCase):
         self.assertEqual(response.content, b'/second_test/')
 
     @override_settings(
-        MIDDLEWARE_CLASSES=(
+        MIDDLEWARE_CLASSES=[
             '%s.ChangeURLconfMiddleware' % middleware.__name__,
             '%s.ReverseOuterInResponseMiddleware' % middleware.__name__,
-        )
+        ]
     )
     def test_reverse_outer_in_response_middleware(self):
         """
@@ -590,10 +590,10 @@ class RequestURLconfTests(TestCase):
             self.client.get('/second_test/')
 
     @override_settings(
-        MIDDLEWARE_CLASSES=(
+        MIDDLEWARE_CLASSES=[
             '%s.ChangeURLconfMiddleware' % middleware.__name__,
             '%s.ReverseInnerInStreaming' % middleware.__name__,
-        )
+        ]
     )
     def test_reverse_inner_in_streaming(self):
         """
@@ -605,10 +605,10 @@ class RequestURLconfTests(TestCase):
         self.assertEqual(b''.join(response), b'/second_test/')
 
     @override_settings(
-        MIDDLEWARE_CLASSES=(
+        MIDDLEWARE_CLASSES=[
             '%s.ChangeURLconfMiddleware' % middleware.__name__,
             '%s.ReverseOuterInStreaming' % middleware.__name__,
-        )
+        ]
     )
     def test_reverse_outer_in_streaming(self):
         """
diff --git a/tests/utils_tests/test_autoreload.py b/tests/utils_tests/test_autoreload.py
index bcb7d1a448..c0865cba57 100644
--- a/tests/utils_tests/test_autoreload.py
+++ b/tests/utils_tests/test_autoreload.py
@@ -27,7 +27,7 @@ class TestFilenameGenerator(TestCase):
                                    'nl', 'LC_MESSAGES', 'django.mo'),
                       filenames)
 
-    @override_settings(LOCALE_PATHS=(LOCALE_PATH,))
+    @override_settings(LOCALE_PATHS=[LOCALE_PATH])
     def test_locale_paths_setting(self):
         """
         Test that gen_filenames also yields from LOCALE_PATHS locales.
diff --git a/tests/view_tests/tests/test_csrf.py b/tests/view_tests/tests/test_csrf.py
index 893a7e200b..26ec221e01 100644
--- a/tests/view_tests/tests/test_csrf.py
+++ b/tests/view_tests/tests/test_csrf.py
@@ -11,11 +11,11 @@ class CsrfViewTests(TestCase):
 
     @override_settings(
         USE_I18N=True,
-        MIDDLEWARE_CLASSES=(
+        MIDDLEWARE_CLASSES=[
             'django.middleware.locale.LocaleMiddleware',
             'django.middleware.common.CommonMiddleware',
             'django.middleware.csrf.CsrfViewMiddleware',
-        ),
+        ],
     )
     def test_translation(self):
         """
diff --git a/tests/view_tests/tests/test_debug.py b/tests/view_tests/tests/test_debug.py
index be6ceff1b5..8645bd3e8e 100644
--- a/tests/view_tests/tests/test_debug.py
+++ b/tests/view_tests/tests/test_debug.py
@@ -546,7 +546,7 @@ class ExceptionReportTestMixin(object):
         """
         Asserts that potentially sensitive info are displayed in the email report.
         """
-        with self.settings(ADMINS=(('Admin', 'admin@fattie-breakie.com'),)):
+        with self.settings(ADMINS=[('Admin', 'admin@fattie-breakie.com')]):
             mail.outbox = []  # Empty outbox
             request = self.rf.post('/some_url/', self.breakfast_data)
             view(request)
@@ -579,7 +579,7 @@ class ExceptionReportTestMixin(object):
         """
         Asserts that certain sensitive info are not displayed in the email report.
         """
-        with self.settings(ADMINS=(('Admin', 'admin@fattie-breakie.com'),)):
+        with self.settings(ADMINS=[('Admin', 'admin@fattie-breakie.com')]):
             mail.outbox = []  # Empty outbox
             request = self.rf.post('/some_url/', self.breakfast_data)
             view(request)
@@ -619,7 +619,7 @@ class ExceptionReportTestMixin(object):
         """
         Asserts that no variables or POST parameters are displayed in the email report.
         """
-        with self.settings(ADMINS=(('Admin', 'admin@fattie-breakie.com'),)):
+        with self.settings(ADMINS=[('Admin', 'admin@fattie-breakie.com')]):
             mail.outbox = []  # Empty outbox
             request = self.rf.post('/some_url/', self.breakfast_data)
             view(request)
diff --git a/tests/view_tests/tests/test_i18n.py b/tests/view_tests/tests/test_i18n.py
index 5185a5c458..ba51d3289b 100644
--- a/tests/view_tests/tests/test_i18n.py
+++ b/tests/view_tests/tests/test_i18n.py
@@ -51,7 +51,7 @@ class I18NTests(TestCase):
         # we force saving language to a cookie rather than a session
         # by excluding session middleware and those which do require it
         test_settings = dict(
-            MIDDLEWARE_CLASSES=('django.middleware.common.CommonMiddleware',),
+            MIDDLEWARE_CLASSES=['django.middleware.common.CommonMiddleware'],
             LANGUAGE_COOKIE_NAME='mylanguage',
             LANGUAGE_COOKIE_AGE=3600 * 7 * 2,
             LANGUAGE_COOKIE_DOMAIN='.example.com',
@@ -193,9 +193,13 @@ class JsI18NTestsMultiPackage(TestCase):
             self.assertContains(response, 'este texto de app3 debe ser traducido')
 
     def test_i18n_with_locale_paths(self):
-        extended_locale_paths = settings.LOCALE_PATHS + (
-            path.join(path.dirname(
-                path.dirname(path.abspath(upath(__file__)))), 'app3', 'locale'),)
+        extended_locale_paths = settings.LOCALE_PATHS + [
+            path.join(
+                path.dirname(path.dirname(path.abspath(upath(__file__)))),
+                'app3',
+                'locale',
+            ),
+        ]
         with self.settings(LANGUAGE_CODE='es-ar', LOCALE_PATHS=extended_locale_paths):
             with override('es-ar'):
                 response = self.client.get('/jsi18n/')