module mailcap to be removed -- how to replace ?

[Karsten Hilbert <Karsten.Hilbert@gmx.net>]

Dear list,

Python 3.11 marks "mailcap" for removal in 3.13. The
documentation speaks about "mimetypes" being a replacement,
of sorts.

However, I can't really see how "mimetypes" helps in
replacing the functionality of "mailcap".

Put another way: what is the suggested way of replacing that
module in existing code ?  The use case is "find the viewer
for any kind of file (mimetype), as long as the system
knows".

Thanks,
Karsten
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