René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Figure out why test_interactive_backend fails on Travis macOS","articleBody":"In the interest of getting 3.3.1 out, we skipped the `test_interactive_backend` test on Travis macOS. It works correctly on a 'real' macOS machine from MacStadium, so we were okay with this for now. However, we should get to the bottom of this failure, whether it's because of old macOS settings on Travis, or whether it's something we can't rely on overall.\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: macOS\r\n  * Matplotlib version: `master`+#18184 (45d748b44270a23b830e1a7aa7586267408819b9)\r\n  * Matplotlib backend (`print(matplotlib.get_backend())`): macOS\r\n  * Python version: 3.8.5\r\n\r\nMarked as Good first issue, as this _should_ be self-contained to the macOS backend and CI, but Medium difficulty, because it's CI...","author":{"url":"https://github.com/QuLogic","@type":"Person","name":"QuLogic"},"datePublished":"2020-08-10T20:36:08.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":11},"url":"https://github.com/18213/matplotlib/issues/18213"}