@@ -36,24 +36,30 @@ def test_use_color_no_tty():
 
 
 def test_use_color_tty_with_color_support():
-    with mock.patch.object(sys.stderr, 'isatty', return_value=True):
-        with mock.patch('pre_commit.color.terminal_supports_color', True):
-            with envcontext.envcontext((('TERM', envcontext.UNSET),)):
-                assert use_color('auto') is True
+    with (
+            mock.patch.object(sys.stderr, 'isatty', return_value=True),
+            mock.patch('pre_commit.color.terminal_supports_color', True),
+            envcontext.envcontext((('TERM', envcontext.UNSET),)),
+    ):
+        assert use_color('auto') is True
 
 
 def test_use_color_tty_without_color_support():
-    with mock.patch.object(sys.stderr, 'isatty', return_value=True):
-        with mock.patch('pre_commit.color.terminal_supports_color', False):
-            with envcontext.envcontext((('TERM', envcontext.UNSET),)):
-                assert use_color('auto') is False
+    with (
+            mock.patch.object(sys.stderr, 'isatty', return_value=True),
+            mock.patch('pre_commit.color.terminal_supports_color', False),
+            envcontext.envcontext((('TERM', envcontext.UNSET),)),
+    ):
+        assert use_color('auto') is False
 
 
 def test_use_color_dumb_term():
-    with mock.patch.object(sys.stderr, 'isatty', return_value=True):
-        with mock.patch('pre_commit.color.terminal_supports_color', True):
-            with envcontext.envcontext((('TERM', 'dumb'),)):
-                assert use_color('auto') is False
+    with (
+            mock.patch.object(sys.stderr, 'isatty', return_value=True),
+            mock.patch('pre_commit.color.terminal_supports_color', True),
+            envcontext.envcontext((('TERM', 'dumb'),)),
+    ):
+        assert use_color('auto') is False
 
 
 def test_use_color_raises_if_given_shenanigans():
 
@@ -1123,20 +1123,24 @@ def test_classifier_removes_dne():
 
 
 def test_classifier_normalizes_filenames_on_windows_to_forward_slashes(tmpdir):
-    with tmpdir.as_cwd():
-        tmpdir.join('a/b/c').ensure()
-        with mock.patch.object(os, 'altsep', '/'):
-            with mock.patch.object(os, 'sep', '\\'):
-                classifier = Classifier.from_config((r'a\b\c',), '', '^$')
-                assert classifier.filenames == ['a/b/c']
+    tmpdir.join('a/b/c').ensure()
+    with (
+            tmpdir.as_cwd(),
+            mock.patch.object(os, 'altsep', '/'),
+            mock.patch.object(os, 'sep', '\\'),
+    ):
+        classifier = Classifier.from_config((r'a\b\c',), '', '^$')
+        assert classifier.filenames == ['a/b/c']
 
 
 def test_classifier_does_not_normalize_backslashes_non_windows(tmpdir):
-    with mock.patch.object(os.path, 'lexists', return_value=True):
-        with mock.patch.object(os, 'altsep', None):
-            with mock.patch.object(os, 'sep', '/'):
-                classifier = Classifier.from_config((r'a/b\c',), '', '^$')
-                assert classifier.filenames == [r'a/b\c']
+    with (
+            mock.patch.object(os.path, 'lexists', return_value=True),
+            mock.patch.object(os, 'altsep', None),
+            mock.patch.object(os, 'sep', '/'),
+    ):
+        classifier = Classifier.from_config((r'a/b\c',), '', '^$')
+        assert classifier.filenames == [r'a/b\c']
 
 
 def test_classifier_empty_types_or(tmpdir):
 
@@ -239,14 +239,16 @@ class MyKeyboardInterrupt(KeyboardInterrupt):
     # To simulate a killed install, we'll make PythonEnv.run raise ^C
     # and then to simulate a second ^C during cleanup, we'll make shutil.rmtree
     # raise as well.
-    with pytest.raises(MyKeyboardInterrupt):
-        with mock.patch.object(
-            lang_base, 'setup_cmd', side_effect=MyKeyboardInterrupt,
-        ):
-            with mock.patch.object(
+    with (
+            pytest.raises(MyKeyboardInterrupt),
+            mock.patch.object(
+                lang_base, 'setup_cmd', side_effect=MyKeyboardInterrupt,
+            ),
+            mock.patch.object(
                 shutil, 'rmtree', side_effect=MyKeyboardInterrupt,
-            ):
-                install_hook_envs(hooks, store)
+            ),
+    ):
+        install_hook_envs(hooks, store)
 
     # Should have made an environment, however this environment is broken!
     hook, = hooks