René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: FontManager.addfont doesn't accept pathlib.Path of TTF font","articleBody":"### Bug summary\r\n\r\nThe [`FontManager.addfont()`](https://github.com/matplotlib/matplotlib/blob/710fce3df95e22701bd68bf6af2c8adbc9d67a79/lib/matplotlib/font_manager.py#L1077-L1094) method is documented as accepting a path-like, but if a path-like for a .ttf font file is passed it raises `TypeError`\r\n\r\n### Code for reproduction\r\n\r\n```python\r\nfrom pathlib import Path\r\nfrom matplotlib import get_data_path, __version__\r\nfrom matplotlib.font_manager import fontManager\r\n\r\npath = Path(get_data_path()) / \"fonts\" / \"ttf\" / \"cmr10.ttf\"\r\n\r\nprint(\"matplotlib\", __version__)\r\nfontManager.addfont(str(path))  # Works\r\nprint(\"str ok\")\r\nfontManager.addfont(path)  # TypeError\r\nprint(\"path ok\")\r\n```\r\n\r\n\r\n### Actual outcome\r\n\r\n```\r\nmatplotlib 3.5.1\r\nstr ok\r\nTraceback (most recent call last):\r\n  File \"/home/twm/dev/roofs/repro.py\", line 10, in \u003cmodule\u003e\r\n    fontManager.addfont(path)  # TypeError\r\n  File \"/home/twm/dev/roofs/venv/lib/python3.9/site-packages/matplotlib/font_manager.py\", line 1092, in addfont\r\n    font = ft2font.FT2Font(path)\r\nTypeError: First argument must be a path or binary-mode file object\r\n```\r\n\r\n### Expected outcome\r\n\r\n```\r\nmatplotlib 3.5.1\r\nstr ok\r\npath ok\r\n```\r\n\r\n### Additional information\r\n\r\nIt looks like the simplest fix would be to convert path-likes to `str` since [`FT2Font` is implemented in C++](https://github.com/matplotlib/matplotlib/blob/9197433d50ed77c37a2d5fcb4e0a3f4b26112c8e/src/ft2font.cpp).\r\n\r\n### Operating system\r\n\r\nUbuntu 20.04\r\n\r\n### Matplotlib Version\r\n\r\n3.5.1\r\n\r\n### Matplotlib Backend\r\n\r\nTkAgg\r\n\r\n### Python version\r\n\r\n3.9.5\r\n\r\n### Jupyter version\r\n\r\nN/A\r\n\r\n### Installation\r\n\r\npip","author":{"url":"https://github.com/twm","@type":"Person","name":"twm"},"datePublished":"2022-03-02T04:00:01.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/22582/matplotlib/issues/22582"}