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[Bug]: Regression in widget behavior

Release criticalFor bugs that make the library unusable (segfaults, incorrect plots, etc) and major regressions.For bugs that make the library unusable (segfaults, incorrect plots, etc) and major regressions.

status: confirmed bug

Status: Open.

#30575 In matplotlib/matplotlib;

· larsoner opened on Sep 17, 2025

Add support for horizontal CheckButtons

status: needs rebase

status: needs revision

topic: widgets/UI

Status: Open (in progress).

matplotlib/matplotlibnumber 27946

#27946 In matplotlib/matplotlib;

· QuLogic opened on Mar 19, 2024

tight_layout support for subfigure

status: waiting for other PR

Status: Open (in progress).

matplotlib/matplotlibnumber 26108

#26108 In matplotlib/matplotlib;

· leejjoon opened on Jun 11, 2023

Horizontal radio buttons

keepItems to be ignored by the “Stale” Github ActionItems to be ignored by the “Stale” Github Action

New feature

status: orphaned PR

topic: widgets/UI

Status: Open (in progress).

matplotlib/matplotlibnumber 13374

#13374 In matplotlib/matplotlib;

· mromanie opened on Feb 6, 2019

Add wai-aria property to the artist accessibility annotations.

accessibility

New feature

status: needs rebase

Status: Draft (not ready).

matplotlib/matplotlibnumber 21328

#21328 In matplotlib/matplotlib;

· tonyfast opened on Oct 10, 2021

ENH/TST: add deadband to image comparison

status: needs rebase

topic: mplot3d

Status: Draft (not ready).

matplotlib/matplotlibnumber 28923

#28923 In matplotlib/matplotlib;

· tacaswell opened on Oct 2, 2024

matplotlib 3d interactive plot boundaries

topic: mplot3d

Status: Open.

#24679 In matplotlib/matplotlib;

· SaHaddad opened on Dec 9, 2022

[Bug]: y_label in wrong place after clearing for twinx axes

topic: ticks axis labels

Status: Open.

#28268 In matplotlib/matplotlib;

· katetsisar opened on May 21, 2024

[ENH]: subfigure_mosaic

Difficulty: Mediumhttps://matplotlib.org/devdocs/devel/contribute.html#good-first-issueshttps://matplotlib.org/devdocs/devel/contribute.html#good-first-issues

Good first issueOpen a pull request against these issues if there are no active ones!Open a pull request against these issues if there are no active ones!

New feature

Status: Open.

#25949 In matplotlib/matplotlib;

· anntzer opened on May 22, 2023

[ENH]: Add a QtPgfPng backend?

backend: pgf

New feature

status: has patchpatch suggested, PR still neededpatch suggested, PR still needed

Status: Open.

#28086 In matplotlib/matplotlib;

· anntzer opened on Apr 16, 2024

[MNT]: matplotlib.cycler and pyplot.cycler are different functions

Maintenance

Status: Open.

#26868 In matplotlib/matplotlib;

· timhoffm opened on Sep 22, 2023

DOC: Add patches and link to transformations in quickstart guide

Documentation

status: needs comment/discussionneeds consensus on next stepneeds consensus on next step

status: needs rebase

Status: Open (in progress).

matplotlib/matplotlibnumber 25911

#25911 In matplotlib/matplotlib;

· melissawm opened on May 18, 2023

ticker.py: always use np.round?

topic: ticks axis labels

Status: Draft (not ready).

matplotlib/matplotlibnumber 27609

#27609 In matplotlib/matplotlib;

· doronbehar opened on Jan 7, 2024

[ENH]: ticker.EngFormatter: allow offset

New feature

Status: Open.

#28463 In matplotlib/matplotlib;

· doronbehar opened on Jun 25, 2024

[Bug]: UnboundLocalError: local variable 'interval' referenced before assignment

status: has patchpatch suggested, PR still neededpatch suggested, PR still needed

topic: date handling

topic: ticks axis labels

Status: Open.

#26363 In matplotlib/matplotlib;

· tnakamot opened on Jul 20, 2023

[Bug]: Calling start() multiple times on a macos timer doesn't stop the previous timer

GUI: MacOSX

Status: Open.

#29076 In matplotlib/matplotlib;

· greglucas opened on Nov 5, 2024

[Bug]: Memory leak due to a circular dependency between Triangulation and TriFinder

topic: tri

Status: Open.

#28447 In matplotlib/matplotlib;

· Baljak opened on Jun 24, 2024

[Bug]: Font fallback issue with CJK characters in text containing math formulas

status: confirmed bug

Status: Open.

#29173 In matplotlib/matplotlib;

· SomeBottle opened on Nov 22, 2024

[Bug]: Incorrect rendering of Abugida fonts on Matplotlib visualization

topic: text

Status: Open.

#29357 In matplotlib/matplotlib;

· nik9hil opened on Dec 20, 2024

Resample RGB images in C++

status: needs rebase

status: waiting for other PR

topic: images

Status: Open (in progress).

matplotlib/matplotlibnumber 29453

#29453 In matplotlib/matplotlib;

· QuLogic opened on Jan 11, 2025

DOC: just new labels

Documentation: examplesfiles in galleries/examplesfiles in galleries/examples

Documentation: plot typesfiles in galleries/plot_typesfiles in galleries/plot_types

Documentation: user guidefiles in galleries/users_explain or doc/usersfiles in galleries/users_explain or doc/users

status: needs comment/discussionneeds consensus on next stepneeds consensus on next step

Status: Open (in progress).

matplotlib/matplotlibnumber 29508

#29508 In matplotlib/matplotlib;

· jklymak opened on Jan 23, 2025

Center of rotation for text with rotation_mode='anchor'

Difficulty: Mediumhttps://matplotlib.org/devdocs/devel/contribute.html#good-first-issueshttps://matplotlib.org/devdocs/devel/contribute.html#good-first-issues

Good first issueOpen a pull request against these issues if there are no active ones!Open a pull request against these issues if there are no active ones!

keepItems to be ignored by the “Stale” Github ActionItems to be ignored by the “Stale” Github Action

topic: text

Status: Open.

#13044 In matplotlib/matplotlib;

· timhoffm opened on Dec 23, 2018

Improve RectangleSelector Rotation revisited and rebased

status: needs rebase

status: needs review

topic: widgets/UI

Status: Open (in progress).

matplotlib/matplotlibnumber 26833

#26833 In matplotlib/matplotlib;

· dhomeier opened on Sep 19, 2023

[Feature Request] Proper Arabic Language Support in Matplotlib Plots

topic: text

Status: Open.

#29806 In matplotlib/matplotlib;

· ahmadmarzok opened on Mar 25, 2025

feat(CI): add Codecov Test Analytics for flaky and failed tests

Status: Open (in progress).

matplotlib/matplotlibnumber 29881

#29881 In matplotlib/matplotlib;

· giovanni-guidini opened on Apr 7, 2025