Created attachment 36928 [details] Patch to add type Python self-describes its MIME types[1][2]. They do not have a IANA registration since they are using the '*/x-*' format anyway, but Python should be a 'common' unregistered format anyway? If you don't think this is OK, then I can try see what needs to be done to get an official media type. [1]: https://github.com/python/cpython/blob/19a3d873005e5730eeabdc394c961e93f2ec02f0/Lib/mimetypes.py#L457 [2]: https://github.com/python/cpython/blob/19a3d873005e5730eeabdc394c961e93f2ec02f0/Lib/mimetypes.py#L528