From 7a628e5b752da6e5b549a5180e3e1ebb4f142b9d Mon Sep 17 00:00:00 2001 From: Elliott Sales de Andrade Date: Fri, 18 Jul 2025 02:25:58 -0400 Subject: [PATCH] Deprecate font_manager.is_opentype_cff_font According to the docs, it was used for PostScript and PDF which "cannot subset those fonts". However, that is no longer true, and there are no users of this function. --- doc/api/next_api_changes/deprecations/30329-ES.rst | 4 ++++ lib/matplotlib/font_manager.py | 2 +- lib/matplotlib/tests/test_font_manager.py | 6 ++++-- 3 files changed, 9 insertions(+), 3 deletions(-) create mode 100644 doc/api/next_api_changes/deprecations/30329-ES.rst diff --git a/doc/api/next_api_changes/deprecations/30329-ES.rst b/doc/api/next_api_changes/deprecations/30329-ES.rst new file mode 100644 index 000000000000..8d5060c4821b --- /dev/null +++ b/doc/api/next_api_changes/deprecations/30329-ES.rst @@ -0,0 +1,4 @@ +``font_manager.is_opentype_cff_font`` is deprecated +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +There is no replacement. diff --git a/lib/matplotlib/font_manager.py b/lib/matplotlib/font_manager.py index ab6b495631de..79e088b85998 100644 --- a/lib/matplotlib/font_manager.py +++ b/lib/matplotlib/font_manager.py @@ -1539,7 +1539,7 @@ def _findfont_cached(self, prop, fontext, directory, fallback_to_default, return _cached_realpath(result) -@lru_cache +@_api.deprecated("3.11") def is_opentype_cff_font(filename): """ Return whether the given font is a Postscript Compact Font Format Font diff --git a/lib/matplotlib/tests/test_font_manager.py b/lib/matplotlib/tests/test_font_manager.py index 24421b8e30b3..b15647644e04 100644 --- a/lib/matplotlib/tests/test_font_manager.py +++ b/lib/matplotlib/tests/test_font_manager.py @@ -67,12 +67,14 @@ def test_json_serialization(tmp_path): def test_otf(): fname = '/usr/share/fonts/opentype/freefont/FreeMono.otf' if Path(fname).exists(): - assert is_opentype_cff_font(fname) + with pytest.warns(mpl.MatplotlibDeprecationWarning): + assert is_opentype_cff_font(fname) for f in fontManager.ttflist: if 'otf' in f.fname: with open(f.fname, 'rb') as fd: res = fd.read(4) == b'OTTO' - assert res == is_opentype_cff_font(f.fname) + with pytest.warns(mpl.MatplotlibDeprecationWarning): + assert res == is_opentype_cff_font(f.fname) @pytest.mark.skipif(sys.platform == "win32" or not has_fclist, pFad - Phonifier reborn

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