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Title: Warn in the docs that MouseEvent.key can be wrong. by anntzer · Pull Request #16892 · matplotlib/matplotlib · GitHub

Open Graph Title: Warn in the docs that MouseEvent.key can be wrong. by anntzer · Pull Request #16892 · matplotlib/matplotlib

X Title: Warn in the docs that MouseEvent.key can be wrong. by anntzer · Pull Request #16892 · matplotlib/matplotlib

Description: PR Summary MouseEvent.key is just derived from the last key_press_event/key_release_event, so will be wrong e.g. if one presses a key while the canvas does not have focus, then move the mouse to the canvas and clicks. In general I think it isn't possible to know what keys are pressed while a mouse even occurs; one can only have a list of modifiers (ctrl/alt/shift). There's a PR adding that at #6159 but it needs a bit of work, so let's document the limitation for now. PR Checklist Has Pytest style unit tests Code is Flake 8 compliant New features are documented, with examples if plot related Documentation is sphinx and numpydoc compliant Added an entry to doc/users/next_whats_new/ if major new feature (follow instructions in README.rst there) Documented in doc/api/api_changes.rst if API changed in a backward-incompatible way

Open Graph Description: PR Summary MouseEvent.key is just derived from the last key_press_event/key_release_event, so will be wrong e.g. if one presses a key while the canvas does not have focus, then move the mouse to th...

X Description: PR Summary MouseEvent.key is just derived from the last key_press_event/key_release_event, so will be wrong e.g. if one presses a key while the canvas does not have focus, then move the mouse to th...

Opengraph URL: https://github.com/matplotlib/matplotlib/pull/16892

X: @github

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23a0b3d Warn in the docs that MouseEvent.key can be wrong. anntzer Mar 23, 2020 https://github.com/matplotlib/matplotlib/pull/16892/commits/23a0b3d80b4b6ad16654c3e4c6e4f77868ba1a5c
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