Backport PR #26940: Add typing to pyplot.show() to avoid errors with mypy --strict.

timhoffm · meeseeksmachine · commit 5703086534c9 · 2023-10-04T21:57:33.000Z
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
@@ -479,7 +479,7 @@ def draw_if_interactive(*args, **kwargs):
 
 
 # This function's signature is rewritten upon backend-load by switch_backend.
-def show(*args, **kwargs):
+def show(*args, **kwargs) -> None:
     """
     Display all open figures.
 
