René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: pickling and unpickling hidpi a qt figure that has been already shown doubles its physical size","articleBody":"### Bug summary\n\nAll's in the title.\n\n### Code for reproduction\n\n```python\n# Run this from a computer with a hidpi display.\r\nfrom pylab import *; import pickle\r\nfig = figure(figsize=(5, 4))\r\nshow(block=False)\r\ncopy = pickle.loads(pickle.dumps(fig))\r\nshow(block=False)\r\nprint(fig.get_size_inches(), c.get_size_inches())\n```\n\n\n### Actual outcome\n\n`[5. 4.] [10.  8.]`\r\n... and the second figure is indeed twice bigger.\n\n### Expected outcome\n\n`[5. 4.] [5.  4.]`\r\n... and two figures with the same size.\n\n### Additional information\n\nBisects to #23476.\n\n### Operating system\n\nmacOS\n\n### Matplotlib Version\n\n3.8\n\n### Matplotlib Backend\n\nqtagg\n\n### Python version\n\n3.12\n\n### Jupyter version\n\nENOSUCHLIB\n\n### Installation\n\ngit checkout","author":{"url":"https://github.com/anntzer","@type":"Person","name":"anntzer"},"datePublished":"2023-10-29T18:17:16.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/27224/matplotlib/issues/27224"}