Issue 439710: User-defined mime.types file

Zope users sometimes asks to add
additional mime.types entries to Zope. 
Zopes mime-types handling is mostly 
based on mimetypes.py. In such cases
users should be able to maintain their
own mime.types files. 

mimetypes.py currently tries to look
for mime.types files in 4 hardcoded locations.

It would be more convinient to specify
additional locations e.g. by an env. var
that holds a list of additional locations
or by any other mechanism that allows user-defined
locations. 

The hardcoded locations also don't work on
Windows.

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Sounds like there should be an object which can be configured with a search path at construction time.  Applications could then store an appropriate mime.types file in a location that makes sense for them.

Would this suite your purposes?

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A more OO approach would be nice. At least a possibility to add "somehow"
different file locations. I have not special preference for any solution. 

Andreas

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I've attached a new version of mimetypes.py; something like this should do the trick and be easy to extend as needed.

Comments welcome.

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OK, I really should update the version here to be the fixed one; sorry about the broken versions!  If there are no objections, I'll check this in soon.

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Ok, I've revised this again, to be a little cleaner and more consistent internally.  I've attached a copy and will check it in as soon as I'm sure the updated documentation won't break the formatting.

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Checked in the new version as Lib/mimetypes.py revision 1.15, with documentation in Doc/lib/libmimetypes.tex revision 1.8.