CallableType.copy_modified: accept sequence for arg_names #14840
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According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉 |
JelleZijlstra
approved these changes
Mar 6, 2023
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This may later have some performance implications, since Sequence operations are currently slower than list operations in compiled code. However, since this is using "bogus" types, there is no impact right now (bogus types are treated as |
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@JukkaL Curious, does this matter given that the sequence is copied by |
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A good point, it doesn't make a difference unless we change also |
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In #4070,
CallableType.__init__was changed to acceptarg_names: Sequence[str | None]so we could pass e.g.list[str]to it. We're making a similar change toCallableType.copy_modified.