René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Underscore character does not exist for cmr10 font","articleBody":"### Bug report\r\n\r\nThe bundled font `cmr10` (and it's associated family) do not contain the underscore character. Instead, the unicode character for the underscore (according to [this website](https://unicode-search.net/unicode-namesearch.pl?term=UNDERSCORE) anyways) is actually mappted to the overdot.\r\n\r\nSee [this StackOverflow](https://stackoverflow.com/questions/60974480/underscore-in-label-does-not-render/60975058#60975058) for details, but I'll repeat here.\r\n\r\n**Code for reproduction**\r\n```python\r\nimport matplotlib.pyplot as plt\r\nplt.rcParams.update({\r\n            'font.family': 'serif',\r\n            'font.serif': 'cmr10',\r\n})\r\n\r\nvariable = range(5)\r\nplt.plot(variable, variable, label='test_underscore')\r\nplt.plot(variable, variable, label='escape\\_underscore')\r\nplt.plot(variable, variable, label=r'rawtest_underscore')\r\nplt.plot(variable, variable, label=r'rawescape\\_underscore')\r\n_=plt.legend()\r\n```\r\n\r\n**Actual outcome**\r\n\r\n![image](https://user-images.githubusercontent.com/20801821/78159073-4b92fb80-73ff-11ea-82d3-32ca7606226b.png)\r\n\r\n\r\n**Expected outcome**\r\n\r\n![image](https://user-images.githubusercontent.com/20801821/78158976-2c946980-73ff-11ea-9f80-c7d7011a091e.png)\r\n\r\n**Matplotlib version**\r\n\u003c!--Please specify your platform and versions of the relevant libraries you are using:--\u003e\r\n  * Operating system: Manjaro 19.0.2\r\n  * Matplotlib version: 3.1.3\r\n  * Matplotlib backend (`print(matplotlib.get_backend())`): module://ipykernel.pylab.backend_inline\r\n  * Python version: 3.7.6\r\n\r\n**Other**\r\n`cmr10` loaded into FontForge shows that:\r\nA) the underscore character doesn't exist\r\nB) the normal underscore character (`005f`) is replaced by the overdot\r\n![image](https://user-images.githubusercontent.com/20801821/78159691-22bf3600-7400-11ea-99a4-cff311d23636.png)\r\n\r\n\r\n","author":{"url":"https://github.com/jrwrigh","@type":"Person","name":"jrwrigh"},"datePublished":"2020-04-01T16:04:37.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/16995/matplotlib/issues/16995"}