Add more video MIME types with defined file extensions #146341

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1. picnixz

   added

   type-featureA feature request or enhancementA feature request or enhancement

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   on Mar 23, 2026
2. bitdancer commented on Mar 24, 2026

   

   bitdancer

   on Mar 24, 2026

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   Please provide documentation on the validity of these additions.
3. sergey-miryanov

   added

   pendingThe issue will be closed if no feedback is providedThe issue will be closed if no feedback is provided

   on Mar 25, 2026
4. picnixz commented on Mar 25, 2026

   

   picnixz

   on Mar 25, 2026

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   We usually register the valid mimetypes if we forgot about them in mimetype. It suffices for them to be present in the IANA registry and we are fine with adding them (we did so in the past).

   Now, whether they are useful or not is another question. The comment in the module doesn't forbid rare additions:

   # Before adding new types, make sure they are either registered with IANA,
   # at https://www.iana.org/assignments/media-types/media-types.xhtml
   # or extensions, i.e. using the x- prefix
   
   # If you add to these, please keep them sorted by mime type.
   # Make sure the entry with the preferred file extension for a particular mime type
   # appears before any others of the same mimetype.
   
5. picnixz commented on Mar 25, 2026

   

   picnixz

   on Mar 25, 2026

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   Now, I don't know whether they are used a lot in the wild so I don't really know whether it's fine to complete the list or not.