René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Doc]: Broken links to fix in docs","articleBody":"### Documentation Link\n\n_No response_\n\n### Problem\n\nThere are several broken links in our docs. There is a proposal to automate finding these at https://github.com/matplotlib/matplotlib/issues/5380, but this issue collates existing broken links that need fixing.\n\n## How to fix\n\n1. Choose a link\n2. Try and access it in your web browser.\n3. If you can't access it, try and find where it's moved or find a suitable alternative link to include\n4. Submit a pull request with the fixed link\n\n## How I found these\nI build the HTML docs, then used `lychee` with\n\n```\nlychee . --exclude https://github.com/matplotlib/matplotlib --verbose --exclude file:///Users/dstansby/software/mpl/matplotlib/doc/build --threads 1 --max-cache-age=0d --timeout=20 --max-concurrency 32 --exclude https://matplotlib.org/stable/users/next_whats_new\n```\n\n## The errors\n\n```bash\nIssues found in inputs. Find details below.\n\n[./html/_sources/api/toolkits/mplot3d/view_angles.rst.txt]:\n     [403] https://www.mathworks.com/help/matlab/ref/view.html | Rejected status code (this depends on your \"accept\" configuration): Forbidden\n     [403] https://www.researchgate.net/publication/8329656_Virtual_Trackballs_Revisited#fullTextFileContent | Rejected status code (this depends on your \"accept\" configuration): Forbidden\n\n[./html/_sources/devel/communication_guide.rst.txt]:\n     [403] https://help.x.com/en/rules-and-policies/x-rules | Error (cached)\n     [400] https://x.com/matplotlib | Error (cached)\n\n[./html/_sources/devel/document.rst.txt]:\n     [404] http://matplotlib.org/stable/old_topic/old_info2 | Rejected status code (this depends on your \"accept\" configuration): Not Found\n     [403] https://stackoverflow.com/a/4836544 | Rejected status code (this depends on your \"accept\" configuration): Forbidden\n\n[./html/_sources/devel/MEP/MEP10.rst.txt]:\n     [404] https://github.com/numpy/numpy/blob/master/doc/HOWTO_DOCUMENT.rst.txt | Error (cached)\n\n[./html/_sources/devel/MEP/MEP11.rst.txt]:\n     [522] http://grokbase.com/t/python/distutils-sig/109bdnfhp4/distutils-ann-setuptools-post-install-script-for-bdist-wininst | Rejected status code (this depends on your \"accept\" configuration): Unknown status code\n     [404] https://setuptools.readthedocs.io/en/latest/easy_install.html | Error (cached)\n\n[./html/_sources/devel/testing.rst.txt]:\n   [ERROR] http://pypi.testrun.org/ | Network error: error sending request for url (http://pypi.testrun.org/) Maybe a certificate error?\n     [404] https://github.com/your_GitHub_user_name/matplotlib/actions | Error (cached)\n\n[./html/_sources/gallery/shapes_and_collections/dolphin.rst.txt]:\n     [404] http://web.resource.org/cc/DerivativeWorks | Rejected status code (this depends on your \"accept\" configuration): Not Found\n     [404] http://web.resource.org/cc/Distribution | Rejected status code (this depends on your \"accept\" configuration): Not Found\n     [404] http://web.resource.org/cc/PublicDomain | Rejected status code (this depends on your \"accept\" configuration): Not Found\n     [404] http://web.resource.org/cc/Reproduction | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/_sources/gallery/user_interfaces/embedding_in_wx5_sgskip.rst.txt]:\n     [404] http://wiki.wxpython.org/Widget%20Inspection%20Tool | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/_sources/project/history.rst.txt]:\n [TIMEOUT] https://acrobat.adobe.com/us/en/acrobat/about-adobe-pdf.html | Timeout\n   [ERROR] https://www.adobe.com/products/postscript.html | Network error: error sending request for url (https://www.adobe.com/products/postscript.html)\n\n[./html/_sources/users/explain/colors/colormaps.rst.txt]:\n     [403] https://stackoverflow.com/q/8202605/ | Rejected status code (this depends on your \"accept\" configuration): Forbidden\n\n[./html/_sources/users/explain/text/fonts.rst.txt]:\n [TIMEOUT] https://helpx.adobe.com/fonts/kb/postscript-type-1-fonts-end-of-support.html | Timeout\n\n[./html/_sources/users/explain/text/pgf.rst.txt]:\n     [403] https://tex.stackexchange.com/q/7953/ | Rejected status code (this depends on your \"accept\" configuration): Forbidden\n     [403] https://tex.stackexchange.com/q/43642/ | Rejected status code (this depends on your \"accept\" configuration): Forbidden\n\n[./html/_sources/users/explain/text/text_props.rst.txt]:\n     [403] https://linux.die.net/man/1/fc-list | Rejected status code (this depends on your \"accept\" configuration): Forbidden\n\n[./html/_sources/users/faq.rst.txt]:\n     [403] https://stackoverflow.com/questions/tagged/matplotlib | Rejected status code (this depends on your \"accept\" configuration): Forbidden\n\n[./html/_sources/users/prev_whats_new/changelog.rst.txt]:\n     [404] http://sourceforge.net/tracker/index.php?func=detail\u0026aid=1587359\u0026group_id=80706\u0026atid=560722 | Rejected status code (this depends on your \"accept\" configuration): Not Found\n     [404] http://sourceforge.net/tracker/index.php?func=detail\u0026aid=1716732\u0026group_id=80706\u0026atid=560720 | Rejected status code (this depends on your \"accept\" configuration): Not Found\n     [404] http://sourceforge.net/tracker/index.php?func=detail\u0026aid=1744154\u0026group_id=80706\u0026atid=560720 | Rejected status code (this depends on your \"accept\" configuration): Not Found\n     [404] http://sourceforge.net/tracker/index.php?func=detail\u0026aid=1866207\u0026group_id=80706\u0026atid=560722 | Rejected status code (this depends on your \"accept\" configuration): Not Found\n     [404] http://sourceforge.net/tracker/index.php?func=detail\u0026aid=1962574\u0026group_id=80706\u0026atid=560720 | Rejected status code (this depends on your \"accept\" configuration): Not Found\n   [ERROR] http://www.voidspace.org.uk/python/configobj.html | Network error: error sending request for url (http://www.voidspace.org.uk/python/configobj.html) Maybe a certificate error?\n     [404] https://sourceforge.net/tracker/index.php?func=detail\u0026aid=1986597\u0026group_id=80706\u0026atid=560720 | Rejected status code (this depends on your \"accept\" configuration): Not Found\n     [404] https://sourceforge.net/tracker/index.php?func=detail\u0026aid=2823304\u0026group_id=80706\u0026atid=560720 | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/_sources/users/prev_whats_new/whats_new_3.10.0.rst.txt]:\n     [429] https://doi.org/10.5281/zenodo.1243862 | Rejected status code (this depends on your \"accept\" configuration): Too Many Requests\n\n[./html/_sources/users/resources/index.rst.txt]:\n [TIMEOUT] https://www.labri.fr/perso/nrougier/teaching/matplotlib/ | Timeout\n\n[./html/_tags/interactivity-event-handling.html]:\n     [404] https://matplotlib.org/stable/_tags/interactivity-event-handling.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/_tags/plot-type-image.html]:\n     [404] https://matplotlib.org/stable/_tags/plot-type-image.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/matplotlib.axes.Axes.get_xinverted.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.get_xinverted.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/matplotlib.axes.Axes.get_yinverted.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.get_yinverted.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/matplotlib.axes.Axes.grouped_bar.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.grouped_bar.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/matplotlib.axes.Axes.set_xinverted.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.set_xinverted.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/matplotlib.axes.Axes.set_yinverted.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.set_yinverted.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/matplotlib.axes.Axes.stem.html]:\n     [403] https://www.mathworks.com/help/matlab/ref/stem.html | Rejected status code (this depends on your \"accept\" configuration): Forbidden\n\n[./html/api/_as_gen/matplotlib.colors.Norm.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/matplotlib.colors.Norm.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/matplotlib.pyplot.grouped_bar.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.grouped_bar.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/matplotlib.pyplot.stem.html]:\n     [403] https://www.mathworks.com/help/matlab/ref/stem.html | Error (cached)\n\n[./html/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.get_xinverted.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.get_xinverted.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.get_yinverted.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.get_yinverted.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.get_zinverted.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.get_zinverted.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.set_xinverted.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.set_xinverted.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.set_yinverted.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.set_yinverted.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.set_zinverted.html]:\n     [404] https://matplotlib.org/stable/api/_as_gen/mpl_toolkits.mplot3d.axes3d.Axes3D.set_zinverted.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/backend_bases_api.html]:\n   [ERROR] https://www.adobe.com/jp/print/postscript/pdfs/PLRM.pdf | Network error: error sending request for url (https://www.adobe.com/jp/print/postscript/pdfs/PLRM.pdf)\n\n[./html/api/backend_cairo_api.html]:\n [TIMEOUT] https://www.adobe.com/jp/print/postscript/pdfs/PLRM.pdf | Timeout\n\n[./html/api/next_api_changes/behavior/28437-CH.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/behavior/28437-CH.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/behavior/29054-AL.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/behavior/29054-AL.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/behavior/29256_IMT.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/behavior/29256_IMT.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/behavior/29827-ES.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/behavior/29827-ES.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/behavior/29832-REC.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/behavior/29832-REC.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/27551-AL.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/27551-AL.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/27972-AL.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/27972-AL.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/29135-TH.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/29135-TH.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/29529-TH.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/29529-TH.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/29817-AL.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/29817-AL.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/29904-tac.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/29904-tac.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/30027-AL.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/30027-AL.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/30044-AL.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/30044-AL.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/30070-OG.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/30070-OG.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/30088-AL.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/30088-AL.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/deprecations/30163-AL.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/deprecations/30163-AL.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/development/29745-DS.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/development/29745-DS.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/removals/29697-REC.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/removals/29697-REC.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/removals/30004-DS.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/removals/30004-DS.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/removals/30005-DS.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/removals/30005-DS.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/removals/30014-DS.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/removals/30014-DS.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/removals/30015-DS.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/removals/30015-DS.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/next_api_changes/removals/30067-OG.html]:\n     [404] https://matplotlib.org/stable/api/next_api_changes/removals/30067-OG.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/api/prev_api_changes/api_changes_0.99.x.html]:\n   [ERROR] http://www.voidspace.org.uk/python/configobj.html | Error (cached)\n\n[./html/api/toolkits/mplot3d/view_angles.html]:\n     [403] https://www.mathworks.com/help/matlab/ref/view.html | Error (cached)\n     [403] https://www.researchgate.net/publication/8329656_Virtual_Trackballs_Revisited#fullTextFileContent | Error (cached)\n\n[./html/devel/communication_guide.html]:\n     [403] https://help.x.com/en/rules-and-policies/x-rules | Rejected status code (this depends on your \"accept\" configuration): Forbidden\n     [400] https://x.com/matplotlib | Rejected status code (this depends on your \"accept\" configuration): Bad Request\n\n[./html/devel/MEP/MEP10.html]:\n     [404] https://github.com/numpy/numpy/blob/master/doc/HOWTO_DOCUMENT.rst.txt | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/devel/MEP/MEP11.html]:\n     [522] http://grokbase.com/t/python/distutils-sig/109bdnfhp4/distutils-ann-setuptools-post-install-script-for-bdist-wininst | Rejected status code (this depends on your \"accept\" configuration): Unknown status code\n     [404] https://setuptools.readthedocs.io/en/latest/easy_install.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/devel/MEP/MEP14.html]:\n   [ERROR] https://pango.gnome.org/ | Network error: error sending request for url (https://pango.gnome.org/) Maybe a certificate error?\n\n[./html/devel/testing.html]:\n     [404] https://github.com/your_GitHub_user_name/matplotlib/actions | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/gallery/color/colorbar_histogram.html]:\n     [404] https://matplotlib.org/stable/gallery/color/colorbar_histogram.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/gallery/images_contours_and_fields/image_exact_placement.html]:\n     [404] https://matplotlib.org/stable/gallery/images_contours_and_fields/image_exact_placement.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/gallery/shapes_and_collections/hatchcolor_demo.html]:\n     [404] https://matplotlib.org/stable/gallery/shapes_and_collections/hatchcolor_demo.html | Rejected status code (this depends on your \"accept\" configuration): Not Found\n\n[./html/project/history.html]:\n [TIMEOUT] https://acrobat.adobe.com/us/en/acrobat/about-adobe-pdf.html | Timeout\n   [ERROR] https://www.adobe.com/products/postscript.html | Network error: error sending request for url (https://www.adobe.com/products/postscript.html)\n\n[./html/users/explain/text/fonts.html]:\n [TIMEOUT] https://helpx.adobe.com/fonts/kb/postscript-type-1-fonts-end-of-support.html | Timeout\n\n[./html/users/explain/text/pgf.html]:\n     [403] https://tex.stackexchange.com/q/7953/ | Error (cached)\n     [403] https://tex.stackexchange.com/q/43642/ | Error (cached)\n\n[./html/users/explain/text/text_props.html]:\n     [403] https://linux.die.net/man/1/fc-list | Error (cached)\n\n[./html/users/faq.html]:\n     [403] https://stackoverflow.com/questions/tagged/matplotlib | Error (cached)\n\n[./html/users/resources/index.html]:\n [TIMEOUT] https://www.labri.fr/perso/nrougier/teaching/matplotlib/ | Timeout\n```\n\n### Fixed\n- [./html/_sources/devel/MEP/MEP14.rst.txt]: \n   [ERROR] https://pango.gnome.org/ | Error (cached) https://github.com/matplotlib/matplotlib/pull/30315\n\n- [./html/users/prev_whats_new/changelog.html]:\n   [ERROR] http://www.voidspace.org.uk/python/configobj.html | Error (cached) https://github.com/matplotlib/matplotlib/pull/30317/\n\n- [./html/devel/MEP/MEP10.html]:\n     [404] https://github.com/numpy/numpy/blob/master/doc/HOWTO_DOCUMENT.rst.txt | Rejected status code (this depends on your \"accept\" configuration): Not Found #30343\n\n- [./html/devel/MEP/MEP11.html]:\n     [522] http://grokbase.com/t/python/distutils-sig/109bdnfhp4/distutils-ann-setuptools-post-install-script-for-bdist-wininst | Rejected status code (this depends on your \"accept\" configuration): Unknown status code\n     [404] https://setuptools.readthedocs.io/en/latest/easy_install.html | Rejected status code (this depends on your \"accept\" configuration): Not Found #30343\n\n- [./html/_sources/devel/testing.rst.txt]:\n   [ERROR] http://pypi.testrun.org/ | Network error: error sending request for url (http://pypi.testrun.org/) Maybe a certificate error?\n     [404] https://github.com/your_GitHub_user_name/matplotlib/actions | Error (cached) #30343","author":{"url":"https://github.com/dstansby","@type":"Person","name":"dstansby"},"datePublished":"2025-07-14T13:15:33.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":12},"url":"https://github.com/30306/matplotlib/issues/30306"}