René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"deprecation of validCap, validJoin makes pydoc spam out many, many warnings","articleBody":"\u003c!--To help us understand and resolve your issue, please fill out the form to the best of your ability.--\u003e\r\n\u003c!--You can feel free to delete the sections that do not apply.--\u003e\r\n\r\n### Bug report\r\n\r\n**Bug summary**\r\n\r\n`pydoc matplotlib.patches` emits many warnings about the deprecation of `validJoin` and `validCap`.  attn @brunobeltran, I guess.\r\n\r\n**Code for reproduction**\r\n**Actual outcome**\r\n\r\nPer the above.\r\n\r\n**Expected outcome**\r\n\r\nNo warning\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:\r\n  * Matplotlib version: master\r\n  * Matplotlib backend (`print(matplotlib.get_backend())`):\r\n  * Python version: 39\r\n  * Jupyter version (if applicable):\r\n  * Other libraries: \r\n\r\n\u003c!--Please tell us how you installed matplotlib and python e.g., from source, pip, conda--\u003e\r\n\u003c!--If you installed from conda, please specify which channel you used if not the default--\u003e\r\n\r\n-----\r\n\r\nI guess a solution would be to add a check in `_deprecated_property.__get__` to silence the warning if `sys.argv[0] == pydoc.__file__`.\r\n","author":{"url":"https://github.com/anntzer","@type":"Person","name":"anntzer"},"datePublished":"2020-12-07T22:09:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/19080/matplotlib/issues/19080"}