René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: Saving a figure with bbox_inches=\"tight\" fails after inset_axes","articleBody":"### Bug summary\n\nAfter using `inset_axes` in mpl 3.7.2, `savefig` fails if `bbox_inches` is set to \"tight\". This does not fail in 3.7.1.\n\n### Code for reproduction\n\n```python\nimport matplotlib.pyplot as plt\r\nfrom mpl_toolkits.axes_grid1.inset_locator import inset_axes\r\n\r\n# Test data\r\nx = [i for i in range(10)]\r\ny = [i for i in range(10)]\r\nx_sub = [i for i in range(5)]\r\ny_sub = [i for i in range(5)]\r\n\r\n# Initial figure\r\nfig = plt.figure()\r\nax = fig.add_subplot(111)\r\nax.plot(x, y)\r\n\r\n# Insetted axis and plot\r\ncax = inset_axes(ax, width=\"30%\", height=\"30%\", loc=\"lower right\")\r\ncax.plot(x_sub, y_sub)\r\n\r\n# Saving -- error due to bbox_inches part\r\nfig.savefig(\"test_out.png\", format=\"png\", bbox_inches=\"tight\")\n```\n\n\n### Actual outcome\n\nAttributeError in line 16 (replaced paths to script and lib):\r\n\r\nTraceback (most recent call last):\r\n  File \"\u003cpath_to_script\u003e/bug_test.py\", line 16, in \u003cmodule\u003e\r\n    fig.savefig(\"test_out.png\", format=\"png\", bbox_inches=\"tight\")\r\n  File \"\u003cpath_to_lib\u003e/lib/python3.9/site-packages/matplotlib/figure.py\", line 3378, in savefig\r\n    self.canvas.print_figure(fname, **kwargs)\r\n  File \"\u003cpath_to_lib\u003e/lib/python3.9/site-packages/matplotlib/backend_bases.py\", line 2353, in print_figure\r\n    restore_bbox = _tight_bbox.adjust_bbox(\r\n  File \"\u003cpath_to_lib\u003e/lib/python3.9/site-packages/matplotlib/_tight_bbox.py\", line 28, in adjust_bbox\r\n    ax.apply_aspect(locator(ax, None))\r\n  File \"\u003cpath_to_lib\u003e/lib/python3.9/site-packages/mpl_toolkits/axes_grid1/inset_locator.py\", line 73, in __call__\r\n    bbox = self.get_window_extent(renderer)\r\n  File \"\u003cpath_to_lib\u003e/lib/python3.9/site-packages/matplotlib/offsetbox.py\", line 399, in get_window_extent\r\n    renderer = self.figure._get_renderer()\r\nAttributeError: 'NoneType' object has no attribute '_get_renderer'\r\n\n\n### Expected outcome\n\nA straight line in the main plot with an insetted second line in the lower right corner.\r\n\r\n![test_out](https://github.com/matplotlib/matplotlib/assets/110386856/4d261024-ff25-465d-a0a4-62cfcf6f0613)\r\n\n\n### Additional information\n\nThis worked in mpl 3.7.1 (see expected outcome).\r\n\r\nThis doesn't happen if the `bbox_inches` kwarg is removed.\n\n### Operating system\n\nMacOS\n\n### Matplotlib Version\n\n3.7.2\n\n### Matplotlib Backend\n\nInstalled osx event loop hook. MacOSX\n\n### Python version\n\n3.9.6\n\n### Jupyter version\n\n_No response_\n\n### Installation\n\npip","author":{"url":"https://github.com/obriene1","@type":"Person","name":"obriene1"},"datePublished":"2023-08-08T08:11:11.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/26468/matplotlib/issues/26468"}