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Hi, when installing PyAV from source I can trigger this bug (not reproducible on latest version 16.1..0)
Python 3.13.11 (main, Dec 17 2025, 21:08:16) [Clang 21.1.4 ] on linux
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>>> import av
>>> c=av.codec.Codec('libx264', 'w')
>>> c.hardware_configs
ret [] type <class 'list'>
Traceback (most recent call last):
File "<python-input-2>", line 1, in <module>
c.hardware_configs
File "av/codec/codec.py", line 249, in av.codec.codec.Codec.hardware_configs.__get__
ret = tuple(ret)
^^^
TypeError: Expected list, got tuple
So for some reason reassigning ret from a list to tuple doesn't work. Looks like this was introduced with recent cython changes in that file.
This change fixes it for me but you might have a better understanding of why the above fails and can fix it in a better way (I don't know cython)
- ret = tuple(ret)
- self._hardware_configs = ret
- return ret
+ self._hardware_configs = tuple(ret)
+ return self._hardware_configsReactions are currently unavailable
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