René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"legend.get_window_extent() fails","articleBody":"### Bug summary\r\n\r\nIt seems a bug has crept in with `points_to_pixels` not available as a function called by `get_window_extent`\r\n\r\n### Code for reproduction\r\n\r\n```python\r\n(Pdb) leg2 = plt.legend(loc='upper left', ncol=2, fontsize=8)\r\n(Pdb) leg2.get_window_extent()\r\n*** AttributeError: 'NoneType' object has no attribute 'points_to_pixels'\r\n(Pdb) print(matplotlib.__version__)\r\n3.4.2\r\n(Pdb) print(matplotlib.get_backend())\r\nMacOSX\r\n(Pdb) import sys; print(sys.version_info)\r\nsys.version_info(major=3, minor=9, micro=6, releaselevel='final', serial=0)\r\n$ jupyter --version\r\njupyter core     : 4.7.1\r\njupyter-notebook : 6.4.0\r\nqtconsole        : 5.1.1\r\nipython          : 7.25.0\r\nipykernel        : 6.0.1\r\njupyter client   : 6.1.12\r\njupyter lab      : not installed\r\nnbconvert        : 6.1.0\r\nipywidgets       : 7.6.3\r\nnbformat         : 5.1.3\r\ntraitlets        : 5.0.5\r\n```\r\n\r\n### Actual outcome\r\n\r\nError, as above\r\n\r\n### Expected outcome\r\n\r\nI expected to get coords\r\n\r\n### Operating system\r\n\r\nMacOS 11.6\r\n\r\n### Matplotlib Version\r\n\r\n3.4.2\r\n\r\n### Matplotlib Backend\r\n\r\nMacOSX\r\n\r\n### Python version\r\n\r\n3.9.6\r\n\r\n### Jupyter version\r\n\r\ncore 4.7.1; notebook 6.4.0\r\n\r\n### Other libraries\r\n\r\n_No response_\r\n\r\n### Installation\r\n\r\nconda\r\n\r\n### Conda channel\r\n\r\nconda-forge","author":{"url":"https://github.com/durack1","@type":"Person","name":"durack1"},"datePublished":"2021-10-05T18:01:58.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/21285/matplotlib/issues/21285"}