font finding in OSX produces 200+ lines of warnings #28249
Description
@anntzer, on my macos 10.15.7 Catalina
system_profiler -xml SPFontsDataType 2>&1 # <- def _get_macos_fonts() in mpl 3.9.0
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2024-05-17 11:56:24.964 system_profiler[1061:15889] CoreText note: Client requested name ".AlBayanPUA", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2024-05-17 11:56:24.964 system_profiler[1061:15889] CoreText note: Set a breakpoint on CTFontLogSystemFontNameRequest to debug.
2024-05-17 11:56:24.968 system_profiler[1061:15889] CoreText note: Client requested name ".AlBayanPUA-Bold", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2024-05-17 11:56:24.972 system_profiler[1061:15889] CoreText note: Client requested name ".AlNilePUA", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2024-05-17 11:56:24.975 system_profiler[1061:15889] CoreText note: Client requested name ".AlNilePUA-Bold", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2024-05-17 11:56:24.978 system_profiler[1061:15889] CoreText note: Client requested name ".AlTarikhPUA", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2024-05-17 11:56:24.982 system_profiler[1061:15889] CoreText note: Client requested name ".AppleColorEmojiUI", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2024-05-17 11:56:24.985 system_profiler[1061:15889] CoreText note: Client requested name ".AppleSDGothicNeoI-Regular", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2024-05-17 11:56:24.988 system_profiler[1061:15889] CoreText note: Client requested name ".AppleSDGothicNeoI-Medium", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
2024-05-17 11:56:24.991 system_profiler[1061:15889] CoreText note: Client requested name ".AppleSDGothicNeoI-Light", it will get Times-Roman rather than the intended font. All system UI font access should be through proper APIs such as CTFontCreateUIFontForLanguage() or +[NSFont systemFontOfSize:].
...
200-odd such lines.
So I reinstalled matplotlib==3.8.4.
Please advise: are there functions in font_manager.py I can call to help debug this
or caches / .jsons I can delete ? Thanks
Originally posted by @denis-bz in #27230 (comment)