added typing_extensions.Self to _AxesBase.twinx

Author: randolf-scholz

environment.yml

@@ -28,6 +28,7 @@ dependencies:
   - python-dateutil>=2.1
   - setuptools_scm
   - wxpython
+  - typing-extensions>=4.0.0
   # building documentation
   - colorspacious
   - graphviz

lib/matplotlib/axes/_base.pyi

@@ -27,6 +27,7 @@ from cycler import Cycler
 import numpy as np
 from numpy.typing import ArrayLike
 from typing import Any, Literal, TypeVar, overload
+from typing_extensions import Self
 from matplotlib.typing import ColorType
 
 _T = TypeVar("_T", bound=Artist)
@@ -384,8 +385,8 @@ class _AxesBase(martist.Artist):
         bbox_extra_artists: Sequence[Artist] | None = ...,
         for_layout_only: bool = ...
     ) -> Bbox | None: ...
-    def twinx(self) -> _AxesBase: ...
-    def twiny(self) -> _AxesBase: ...
+    def twinx(self) -> Self: ...
+    def twiny(self) -> Self: ...
     def get_shared_x_axes(self) -> cbook.GrouperView: ...
     def get_shared_y_axes(self) -> cbook.GrouperView: ...
     def label_outer(self, remove_inner_ticks: bool = ...) -> None: ...

pyproject.toml

@@ -39,6 +39,7 @@ dependencies = [
     "pillow >= 8",
     "pyparsing >= 2.3.1",
     "python-dateutil >= 2.7",
+    "typing-extensions >= 4.0.0",
 ]
 requires-python = ">=3.10"