Replaced dict() usage with dict literals.

Literals are faster and more idiomatic.

django/forms/widgets.py

@@ -593,16 +593,16 @@ class ChoiceWidget(Widget):
             option_attrs.update(self.checked_attribute)
         if 'id' in option_attrs:
             option_attrs['id'] = self.id_for_label(option_attrs['id'], index)
-        return dict(
-            name=name,
-            value=value,
-            label=label,
-            selected=selected,
-            index=index,
-            attrs=option_attrs,
-            type=self.input_type,
-            template_name=self.option_template_name,
-        )
+        return {
+            'name': name,
+            'value': value,
+            'label': label,
+            'selected': selected,
+            'index': index,
+            'attrs': option_attrs,
+            'type': self.input_type,
+            'template_name': self.option_template_name,
+        }
 
     def get_context(self, name, value, attrs=None):
         context = super(ChoiceWidget, self).get_context(name, value, attrs)

django/test/runner.py

@@ -550,11 +550,11 @@ class DiscoverRunner:
         return DebugSQLTextTestResult if self.debug_sql else None
 
     def get_test_runner_kwargs(self):
-        return dict(
-            failfast=self.failfast,
-            resultclass=self.get_resultclass(),
-            verbosity=self.verbosity,
-        )
+        return {
+            'failfast': self.failfast,
+            'resultclass': self.get_resultclass(),
+            'verbosity': self.verbosity,
+        }
 
     def run_checks(self):
         # Checks are run after database creation since some checks require

tests/admin_views/tests.py

@@ -582,24 +582,30 @@ class AdminViewBasicTest(AdminViewBasicTestCase):
         response = self.client.get(changelist_url)
         self.assertContains(response, '<div id="changelist-filter">')
         filters = {
-            'chap__id__exact': dict(
-                values=[c.id for c in Chapter.objects.all()],
-                test=lambda obj, value: obj.chap.id == value),
-            'chap__title': dict(
-                values=[c.title for c in Chapter.objects.all()],
-                test=lambda obj, value: obj.chap.title == value),
-            'chap__book__id__exact': dict(
-                values=[b.id for b in Book.objects.all()],
-                test=lambda obj, value: obj.chap.book.id == value),
-            'chap__book__name': dict(
-                values=[b.name for b in Book.objects.all()],
-                test=lambda obj, value: obj.chap.book.name == value),
-            'chap__book__promo__id__exact': dict(
-                values=[p.id for p in Promo.objects.all()],
-                test=lambda obj, value: obj.chap.book.promo_set.filter(id=value).exists()),
-            'chap__book__promo__name': dict(
-                values=[p.name for p in Promo.objects.all()],
-                test=lambda obj, value: obj.chap.book.promo_set.filter(name=value).exists()),
+            'chap__id__exact': {
+                'values': [c.id for c in Chapter.objects.all()],
+                'test': lambda obj, value: obj.chap.id == value,
+            },
+            'chap__title': {
+                'values': [c.title for c in Chapter.objects.all()],
+                'test': lambda obj, value: obj.chap.title == value,
+            },
+            'chap__book__id__exact': {
+                'values': [b.id for b in Book.objects.all()],
+                'test': lambda obj, value: obj.chap.book.id == value,
+            },
+            'chap__book__name': {
+                'values': [b.name for b in Book.objects.all()],
+                'test': lambda obj, value: obj.chap.book.name == value,
+            },
+            'chap__book__promo__id__exact': {
+                'values': [p.id for p in Promo.objects.all()],
+                'test': lambda obj, value: obj.chap.book.promo_set.filter(id=value).exists(),
+            },
+            'chap__book__promo__name': {
+                'values': [p.name for p in Promo.objects.all()],
+                'test': lambda obj, value: obj.chap.book.promo_set.filter(name=value).exists(),
+            },
         }
         for filter_path, params in filters.items():
             for value in params['values']:

tests/view_tests/tests/test_i18n.py

@@ -134,13 +134,13 @@ class I18NTests(TestCase):
     def test_setlang_cookie(self):
         # 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=['django.middleware.common.CommonMiddleware'],
-            LANGUAGE_COOKIE_NAME='mylanguage',
-            LANGUAGE_COOKIE_AGE=3600 * 7 * 2,
-            LANGUAGE_COOKIE_DOMAIN='.example.com',
-            LANGUAGE_COOKIE_PATH='/test/',
-        )
+        test_settings = {
+            'MIDDLEWARE': ['django.middleware.common.CommonMiddleware'],
+            'LANGUAGE_COOKIE_NAME': 'mylanguage',
+            'LANGUAGE_COOKIE_AGE': 3600 * 7 * 2,
+            'LANGUAGE_COOKIE_DOMAIN': '.example.com',
+            'LANGUAGE_COOKIE_PATH': '/test/',
+        }
         with self.settings(**test_settings):
             post_data = dict(language='pl', next='/views/')
             response = self.client.post('/i18n/setlang/', data=post_data)