argparse: Use SupportsWrite instead of IO #13324
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Diff from mypy_primer, showing the effect of this PR on open source code: mypy (https://github.com/python/mypy)
+ mypy/main.py:375: error: Argument 1 of "print_usage" is incompatible with supertype "ArgumentParser"; supertype defines the argument type as "Optional[SupportsWrite[str]]" [override]
+ mypy/main.py:375: note: This violates the Liskov substitution principle
+ mypy/main.py:375: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#incompatible-overrides
+ mypy/main.py:380: error: Argument 1 of "print_help" is incompatible with supertype "ArgumentParser"; supertype defines the argument type as "Optional[SupportsWrite[str]]" [override]
+ mypy/main.py:380: note: This violates the Liskov substitution principle
+ mypy/main.py:380: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#incompatible-overrides
+ mypy/main.py:385: error: Argument 2 of "_print_message" is incompatible with supertype "ArgumentParser"; supertype defines the argument type as "Optional[SupportsWrite[str]]" [override]
+ mypy/main.py:385: note: This violates the Liskov substitution principle
+ mypy/main.py:385: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#incompatible-overrides
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hamdanal
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Dec 28, 2024
This is in anticipation of python/typeshed#13324
hauntsaninja
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to python/mypy
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Dec 28, 2024
This is in anticipation of python/typeshed#13324
JelleZijlstra
approved these changes
Dec 30, 2024
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