René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[bug] segmentation fault when try to savefig a pdf with Chinese font","articleBody":"## Environment\r\n\r\n- linux 5.4.13\r\n- python 3.9.0b3\r\n- ipython 7.19.0\r\n- matplotlib 3.3.3\r\n- texlive 2019-r1 (maybe useful)\r\n- qt 5.15.0 (maybe useful)\r\n- jupter 1.0.0-r2 (but i use ipython in terminal not jupyter)\r\n\r\n## Reproduce Procedures\r\n\r\n```ipython\r\n%matplotlib qt\r\nimport matplotlib.pyplot as plt\r\nfig,ax=plt.subplots(1,1)\r\nax.set_xlabel('测试',fontdict={'family': 'WenQuanYi Micro Hei'})\r\nplt.savefig('a.pdf')\r\n```\r\n\r\n```shell\r\n[1]    50554 segmentation fault (core dumped)  ipython\r\n```\r\n\r\n## Note\r\n\r\nWenQuanYi Micro Hei is a open source chinese font and can be installed by\r\n`sudo emerge -av media-fonts/wqy-microhei` in my distribution. replacing it\r\nwith any Chinese font will result in the same bug. if replace it with any\r\nnon-Chinese font will not output Chinese character and avoid the bug.\r\n\r\nif the picture format is png, the bug will not occur, and the file `a.png`\r\nwill be normal.\r\n","author":{"url":"https://github.com/Freed-Wu","@type":"Person","name":"Freed-Wu"},"datePublished":"2021-02-06T15:34:25.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/19469/matplotlib/issues/19469"}