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| @type_check_only | ||
| class _Decoder(Protocol): | ||
| def __call__(self, input: ReadableBuffer, errors: str = ..., /) -> tuple[str, int]: ... # signature of Codec().decode | ||
| def __call__(self, input: ReadableBuffer, /, errors: str = ...) -> tuple[str, int]: ... # signature of Codec().decode |
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This is not correct for all codecs:
>>> codecs.lookup("ascii").decode(b"abc", errors="replace")
Traceback (most recent call last):
File "<python-input-3>", line 1, in <module>
codecs.lookup("ascii").decode(b"abc", errors="replace")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: _codecs.ascii_decode() takes no keyword arguments
jw9829
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According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉 |
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Fixes #16441.
The UTF-8 decoder returned by
codecs.lookup()acceptserrors=as a keyword. Other codecs keep a positional-only signature because some reject keyword arguments.