Adding examples _typing.py

hiyuk1 · web-flow · commit 0771619f41f8 · 2025-07-17T23:10:05.000-03:00
Added simple examples to Renamer
diff --git a/pandas/_typing.py b/pandas/_typing.py
@@ -219,6 +219,8 @@ def __reversed__(self) -> Iterator[_T_co]: ...
 )
 
 # For functions like rename that convert one label to another
+# For example, you can pass a dict like {'old_name' : 'new_name'}
+# or a function like str.lower
 Renamer: TypeAlias = Mapping[Any, Hashable] | Callable[[Any], Hashable]
 
 # to maintain type information across generic functions and parametrization

Original file line number	Diff line number	Diff line change
`@@ -219,6 +219,8 @@ def __reversed__(self) -> Iterator[_T_co]: ...`
`219`	`219`	`)`
`220`	`220`
`221`	`221`	`# For functions like rename that convert one label to another`
	`222`	`+# For example, you can pass a dict like {'old_name' : 'new_name'}`
	`223`	`+# or a function like str.lower`
`222`	`224`	`Renamer: TypeAlias = Mapping[Any, Hashable] \| Callable[[Any], Hashable]`
`223`	`225`
`224`	`226`	`# to maintain type information across generic functions and parametrization`