René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"can't stop macosx mainloop","articleBody":"### Bug report\r\n\r\n**Bug summary**\r\n\r\nI can't figure out how to stop the cocoa mainloop once it's going with the macosx backend. This could be a missing API, or just one that I don't know about.\r\n\r\nI suspect an API that exposes sending `[NSApp stop]` is all that's needed, but I'm not sure.\r\n\r\n**Code for reproduction**\r\n\r\n```python\r\nimport matplotlib\r\nmatplotlib.use('macosx')\r\nimport matplotlib.pyplot as plt\r\nfrom matplotlib.backends.backend_macosx import TimerMac, show\r\n\r\ndef stop_mainloop():\r\n    print(\"I don't know how to quit you\")\r\n    t.stop()\r\n\r\nt = TimerMac(2000)\r\nt.add_callback(stop_mainloop)\r\nt.start()\r\n\r\nshow.mainloop()\r\n```\r\n\r\n**Actual outcome**\r\n\r\nLoop runs forever because I don't know how to stop it.\r\n\r\n\r\n**Matplotlib version**\r\n\r\n  * Operating system: macOS 10.13.2\r\n  * Matplotlib version: 2.0.2 (conda-forge)\r\n  * Matplotlib backend (`print(matplotlib.get_backend())`): MacOSX\r\n  * Python version: 3.6.1\r\n\r\n","author":{"url":"https://github.com/minrk","@type":"Person","name":"minrk"},"datePublished":"2017-12-14T15:38:54.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/10002/matplotlib/issues/10002"}