Re: [Python-Dev] mimetypes patch #554192

16 Aug 2002

      Barry A. Warsaw wrote:
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"WD" == Walter Dörwald  writes:
WD> Martin v. Loewis and I were discussing whether it would make
    WD> sense to make the helper method add_type (which is used for
    WD> adding a mapping between one type and one extension) visible
    WD> on the module level.
WD> Any comments?
+1 on add_types() being public, but it should probably have a strict
flag to decide whether to add the new entry to the standard types dict
or the common types dict.
OK, so we probably need a reverse mapping for common_types too, but 
shouldn't we consider common_types to be fixed?

Maybe we should add a guess_all_types too, so we can handle duplicate 
extensions, i.e.
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mimetypes.guess_all_types(".cdf")
['application/x-cdf', 'application/x-netcdf']
This would of course require to change the initialization of types_map
from a dict constant to many calls to add_type.

Even better would be, if we could assign priorities to the mappings,
so that for e.g. image/jpeg the preferred extension is .jpeg.
Then guess_type() and guess_extension() would return the preferred
mimetype/extension.

Bye,
    Walter Dörwald