René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Available fonts are ignored by font_manager","articleBody":"There are two issues: \r\n\r\n1) font_manager is not finding fonts that are in the system \u003e this is easily resolved by rebuilding the cache, which perhaps should be a default True as it is very fast to do it seems. \r\n\r\n2) even when the font is found, Matplotlib forcefully choose one of the default fonts \u003e I did not find a resolution for this.\r\n\r\nThe font_manager utility seems to have some issues in exposing fonts that are installed in the system to matplotlib. For example: \r\n\r\n```\r\nfrom matplotlib import font_manager\r\nfont_manager.findfont('Noto Sans Tibetan')\r\n```\r\nIs referring to a font that I have in the system, and this yields:\r\n\r\n`'/Users/mikko/dev/boke/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXNonUni.ttf'`\r\n\r\n(BTW: it is very strange to get this path, as it refers to totally separate virtualenv than the one I'm executing these commands from!?)\r\n\r\nSo for some reason, it forcefully ignores the font that I have. To prove the point, I will try the same with made up font name: \r\n\r\n`font_manager.findfont('sdfdsfds')`\r\n\r\n`/Users/mikko/dev/fontest/lib/python3.6/site-packages/matplotlib/font_manager.py:1320: UserWarning: findfont: Font family ['sdfdsfds'] not found. Falling back to DejaVu Sans`\r\n\r\nTo get this far i.e. being able to identify the font I have in the first place, I needed to do: \r\n\r\n`font_manager.findfont('Noto Sans Tibetan', rebuild_if_missing=True)`\r\n\r\nAny suggestion for overcoming this?\r\n  ","author":{"url":"https://github.com/mikkokotila","@type":"Person","name":"mikkokotila"},"datePublished":"2018-01-09T14:19:23.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":39},"url":"https://github.com/10201/matplotlib/issues/10201"}