Adds covariant true to key

corenting · Jul 20, 2023 · ac4c5c9 · ac4c5c9
1 parent e2d2aaa
commit ac4c5c9
Showing 1 changed file with 1 addition and 4 deletions.
diff --git a/immutabledict/__init__.py b/immutabledict/__init__.py
@@ -6,7 +6,7 @@
 __version__ = "2.2.5"
 
 _K = TypeVar("_K")
-_V = TypeVar("_V")
+_V = TypeVar("_V", covariant=True)
 
 
 class immutabledict(Mapping[_K, _V]):
@@ -35,9 +35,6 @@ def __getitem__(self, key: _K) -> _V:
     def __contains__(self, key: object) -> bool:
         return key in self._dict
 
-    def copy(self, **add_or_replace: _V) -> immutabledict[_K, _V]:
-        return self.__class__(self, **add_or_replace)
-
     def __iter__(self) -> Iterator[_K]:
         return iter(self._dict)