[issue4963] mimetypes.guess_extension result changes after mimetypes.init()

[Martin Panter]

Martin Panter added the comment:

I suggest to discuss the non-determinism problem in Issue 1043134 (about determining a canonical extension for each content type). I understood this bug (Issue 4963) is about the behaviour of repeated initialization of the same instance of mimetypes.

BTW an ordered dictionary wouldn’t help with duplicate dictionary keys; see guess_extension("application/excel").

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nosy: +martin.panter

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue4963>
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