diff --git a/src/_pytest/monkeypatch.py b/src/_pytest/monkeypatch.py
index e39905d94..e988f59a2 100644
--- a/src/_pytest/monkeypatch.py
+++ b/src/_pytest/monkeypatch.py
@@ -2,9 +2,9 @@
 import os
 import re
 import sys
+import typing
 import warnings
 from contextlib import contextmanager
-import typing
 from typing import Any
 from typing import Generator
 from typing import List
@@ -130,7 +130,13 @@ class MonkeyPatch:
 
     def __init__(self) -> None:
         self._setattr: List[Tuple[object, str, object]] = []
-        self._setitem: List[Tuple[Union[MutableMapping[Any, Any], "typing.TypedDict[Any, Any]"], object, object]] = []
+        self._setitem: List[
+            Tuple[
+                Union[MutableMapping[Any, Any], "typing.TypedDict[Any, Any]"],
+                object,
+                object,
+            ]
+        ] = []
         self._cwd: Optional[str] = None
         self._savesyspath: Optional[List[str]] = None
 
@@ -291,12 +297,22 @@ class MonkeyPatch:
             self._setattr.append((target, name, oldval))
             delattr(target, name)
 
-    def setitem(self, dic: Union[MutableMapping[K, V], "typing.TypedDict[K, V]"], name: K, value: V) -> None:
+    def setitem(
+        self,
+        dic: Union[MutableMapping[K, V], "typing.TypedDict[K, V]"],
+        name: K,
+        value: V,
+    ) -> None:
         """Set dictionary entry ``name`` to value."""
         self._setitem.append((dic, name, dic.get(name, notset)))
         dic[name] = value
 
-    def delitem(self, dic: Union[MutableMapping[K, V], "typing.TypedDict[K, V]"], name: K, raising: bool = True) -> None:
+    def delitem(
+        self,
+        dic: Union[MutableMapping[K, V], "typing.TypedDict[K, V]"],
+        name: K,
+        raising: bool = True,
+    ) -> None:
         """Delete ``name`` from dict.
 
         Raises ``KeyError`` if it doesn't exist, unless ``raising`` is set to