Hi,

The download links at https://docs.python.org/dev/download.html are responding with error 404.

Thanks for reporting! This should be fixed around the next month (we're just waiting a new release of Sphinx fixing issue), but only /dev/ is broken, other versions should be available. For more informations see: - https://bugs.python.org/issue35033 - https://github.com/sphinx-doc/sphinx/pull/5559

Why this happens?

Because since Python 3.8 we started using column and row spanning in tables in our documentation, which will only be supported in the next Sphinx version, hopefully next month. This is breaking the build process, after the HTML build but before the PDF build. Bests, --  Julien Palard https://mdk.fr