[New-bugs-announce] [issue41257] mimetypes.guess_extension('video/x-matroska') return wrong value

[Saber Hayati]

New submission from Saber Hayati <saberhayati at gmail.com>:

Code:
import mimetypes
print(mimetypes.guess_extension('video/x-matroska'))
# return '.mpv' instead of '.mkv'

Python 3.8.3 on Linux

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components: 2to3 (2.x to 3.x conversion tool)
messages: 373402
nosy: Saber Hayati
priority: normal
severity: normal
status: open
title: mimetypes.guess_extension('video/x-matroska') return wrong value
type: behavior
versions: Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41257>
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