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Title: Use CoreText to find macOS fonts by iccir · Pull Request #31977 · matplotlib/matplotlib · GitHub

Open Graph Title: Use CoreText to find macOS fonts by iccir · Pull Request #31977 · matplotlib/matplotlib

X Title: Use CoreText to find macOS fonts by iccir · Pull Request #31977 · matplotlib/matplotlib

Description: matplotlib: plotting with Python. Contribute to matplotlib/matplotlib development by creating an account on GitHub.

Open Graph Description: Closes #28249 Closes #31965 Why is this change necessary? Prior to this change, findSystemFonts() in font_manager.py called system_profiler -xml SPFontsDataType. This subprocess would load 1000+ fo...

X Description: Closes #28249 Closes #31965 Why is this change necessary? Prior to this change, findSystemFonts() in font_manager.py called system_profiler -xml SPFontsDataType. This subprocess would load 1000+ fo...

Opengraph URL: https://github.com/matplotlib/matplotlib/pull/31977

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Jul 1, 2026https://github.com/matplotlib/matplotlib/pull/31977#issue-4788198309
#28249https://github.com/matplotlib/matplotlib/issues/28249
#31965https://github.com/matplotlib/matplotlib/issues/31965
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July 1, 2026 11:00https://github.com/matplotlib/matplotlib/pull/31977#commits-pushed-50cbd1e
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Use CoreText to find macOS fontshttps://github.com/matplotlib/matplotlib/pull/31977/commits/50cbd1e491d625f6f554ee492e7616b930a9183b
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Fix mypy-stubtest failurehttps://github.com/matplotlib/matplotlib/pull/31977/commits/aa947c8e7a4f36669d0460983b3d94b39747c1ab
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topic: text/fonts https://github.com/matplotlib/matplotlib/issues?q=state%3Aopen%20label%3A%22topic%3A%20text%2Ffonts%22
Jul 9, 2026https://github.com/matplotlib/matplotlib/pull/31977#event-27776482563
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topic: text/fonts https://github.com/matplotlib/matplotlib/issues?q=state%3Aopen%20label%3A%22topic%3A%20text%2Ffonts%22
[MNT]: Possibly use CoreText to find fonts for faster performance https://github.com/matplotlib/matplotlib/issues/31965
font finding in OSX produces 200+ lines of warnings https://github.com/matplotlib/matplotlib/issues/28249
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