Public bug reported:
mutagen.mp4.MP4 container does not accept a string value for freeform
text tags, but expects (and returns) a bytes argument. This is
inconsistent with python3 default of string values.
code:
>>> import mutagen.mp4.MP4 as MP4
>>> m = MP4()
>>> m['----:test:item'] = 'test value'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3/dist-packages/mutagen/_file.py", line 75, in
__setitem__
self.tags[key] = value
File "/usr/lib/python3/dist-packages/mutagen/mp4/__init__.py", line 375, in
__setitem__
self._render(key, value)
File "/usr/lib/python3/dist-packages/mutagen/mp4/__init__.py", line 391, in
_render
return render_func(self, key, value, *render_args)
File "/usr/lib/python3/dist-packages/mutagen/mp4/__init__.py", line 632, in
__render_freeform
data += v
TypeError: can't concat str to bytes
>>> m['----:test:item'] = b'test value'
>>> m['----:test:item']
b'test value'
>>>
Expected behaviour: accept (and return) string values, with encoding to
utf-8 if required (this is implied in some of the comments in the code).
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: python3-mutagen 1.40.0-2
ProcVersionSignature: Ubuntu 5.0.0-20.21-generic 5.0.8
Uname: Linux 5.0.0-20-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Jul 8 15:03:10 2019
Dependencies:
PackageArchitecture: all
SourcePackage: mutagen
UpgradeStatus: Upgraded to disco on 2019-04-25 (74 days ago)
** Affects: mutagen (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug disco
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https://bugs.launchpad.net/bugs/1835771
Title:
MP4 fails with string argument for freeform text ('----') tags
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