René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Warning: Cannot change to a different GUI toolkit: notebook. Using qt instead.","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\nWhen I try to use the jupyter notebook `%matplotlib notebook` magic command on Linux (as the first command executed in the notebook), I get this warning:\r\n\r\n```\r\nWarning: Cannot change to a different GUI toolkit: notebook. Using qt instead.\r\n```\r\n\r\nPlots then appear a separate qt window, outside the browser. The `%matplotlib inline` command does work.\r\n\r\nThis occurs in freshly-opened jupyter notebooks, with a fresh kernel.\r\n\r\n\u003c!--Please specify your platform and versions of the relevant libraries you are using:--\u003e\r\n  * Operating system: Ubuntu 16.04/18.04\r\n  * Matplotlib version: 2.1.1\r\n  * Python version: 3.6.3\r\n  * jupyter (1.0.0)\r\n  * jupyter-client (5.2.3)\r\n  * jupyter-console (5.2.0)\r\n  * jupyter-core (4.4.0)\r\n  * notebook (5.5.0)\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\nLSST miniconda:\r\nhttps://github.com/lsst/lsstsw/blob/master/etc/conda3_packages-linux-64.txt\r\n\r\nI've since upgraded matplotlib and jupyter to attempt to remedy this, but upgrading didn't change the error.","author":{"url":"https://github.com/parejkoj","@type":"Person","name":"parejkoj"},"datePublished":"2018-06-01T22:36:52.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":16},"url":"https://github.com/11365/matplotlib/issues/11365"}