René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: backend_cairo set_context() is broken for cairocffi","articleBody":"### Bug summary\n\nSaving an SVG via cairocffi this way worked in 3.5.2, but fails in 3.6.x - 3.7.2 .\r\nI see though that it's just a cairocffi issue; switching to pycairo seems to work so for now I will give that a try.\n\n### Code for reproduction\n\n```python\nimport sys\r\nimport matplotlib\r\nfrom matplotlib import pyplot as plt\r\n\r\n\r\ndef main(argv):\r\n    matplotlib.use(\"cairo\")\r\n    fig, axs = plt.subplots(1, 8, figsize=(8.0, 4.0), facecolor=\"w\", edgecolor=\"k\")\r\n\r\n    dump_to = \"whatever.svg\"\r\n    plt.savefig(dump_to)\r\n\r\n\r\nif __name__ == '__main__':\r\n    main(sys.argv)\n```\n\n\n### Actual outcome\n\n```\r\n  File \".../.venv/lib/python3.11/site-packages/matplotlib/backends/backend_cairo.py\", line 484, in _save\r\n    self._renderer.set_context(cairo.Context(surface))\r\n  File \".../.venv/lib/python3.11/site-packages/matplotlib/backends/backend_cairo.py\", line 99, in set_context\r\n    size = rect.width, rect.height\r\n           ^^^^^^^^^^\r\nAttributeError: 'tuple' object has no attribute 'width'\r\n\r\n```\n\n### Expected outcome\n\nsavefig should save the fig\n\n### Additional information\n\nthis is with:\r\nmatplotlib==3.7.2\r\ncairocffi==1.6.1\r\nand the brew install of cairo 1.16.0_5\n\n### Operating system\n\nmacOS\n\n### Matplotlib Version\n\n3.7.2\n\n### Matplotlib Backend\n\ncairo\n\n### Python version\n\n3.11.4\n\n### Jupyter version\n\n_No response_\n\n### Installation\n\npip","author":{"url":"https://github.com/dmatth","@type":"Person","name":"dmatth"},"datePublished":"2023-08-14T18:43:43.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/26523/matplotlib/issues/26523"}