New submission from Jens Troeger <jens.troe...@gmail.com>:
I think this one’s quite easy to reproduce:
Python 3.7.4 (default, Jul 11 2019, 01:08:00)
[Clang 10.0.1 (clang-1001.0.46.4)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import mimetypes
>>> mimetypes.guess_extension("image/jpg") # Expected ".jpg"
>>> mimetypes.guess_extension("image/jpeg") # Expected ".jpg"
'.jpe'
According to MDN
https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Complete_list_of_MIME_types
only "image/jpeg" is a valid MIME type; however, I’ve seen quite a bit of
"image/jpg" out in the wild and I think that ought to be accounted for too.
Before I look into submitting a PR I wanted to confirm that this is an issue
that ought to be fixed. I think it is.
----------
components: Library (Lib)
messages: 350408
nosy: _savage
priority: normal
severity: normal
status: open
title: mimetypes.guess_extension() doesn’t get JPG right
type: behavior
versions: Python 3.7
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue37943>
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