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Title: FIX: be very paranoid about checking what the current canvas is by tacaswell · Pull Request #25573 · matplotlib/matplotlib · GitHub

Open Graph Title: FIX: be very paranoid about checking what the current canvas is by tacaswell · Pull Request #25573 · matplotlib/matplotlib

X Title: FIX: be very paranoid about checking what the current canvas is by tacaswell · Pull Request #25573 · matplotlib/matplotlib

Description: PR Summary closes #25572 There are many ways for things to end up in odd states, the goal here is to detect if the the canvas has changed under us when trying to manage the state of widgets. PR Checklist Documentation and Tests Has pytest style unit tests (and pytest passes) [N/A] Documentation is sphinx and numpydoc compliant (the docs should build without error). [N/A] New plotting related features are documented with examples. Release Notes [N/A] New features are marked with a .. versionadded:: directive in the docstring and documented in doc/users/next_whats_new/ [N/A] API changes are marked with a .. versionchanged:: directive in the docstring and documented in doc/api/next_api_changes/ [N/A] Release notes conform with instructions in next_whats_new/README.rst or next_api_changes/README.rst

Open Graph Description: PR Summary closes #25572 There are many ways for things to end up in odd states, the goal here is to detect if the the canvas has changed under us when trying to manage the state of widgets. PR Che...

X Description: PR Summary closes #25572 There are many ways for things to end up in odd states, the goal here is to detect if the the canvas has changed under us when trying to manage the state of widgets. PR Che...

Opengraph URL: https://github.com/matplotlib/matplotlib/pull/25573

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FIX: be very paranoid about checking what the current canvas is https://github.com/matplotlib/matplotlib/pull/25573/files#top
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5a9f7cb TST: Add tests for saving a figure after removing a widget axes tacaswell Mar 29, 2023 https://github.com/matplotlib/matplotlib/pull/25573/commits/5a9f7cbbf819c5a8ec2a1c39b19460a8e01fbeec
5c83d7b FIX: callbacks do not raise after removal of widget axes tacaswell Jul 18, 2025 https://github.com/matplotlib/matplotlib/pull/25573/commits/5c83d7b104636f84b11e91a0451a6ada1b1c022d
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