Sync typeshed #13977
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Sync typeshed #13977
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Source commit: python/typeshed@8036bbd
This is allegedly causing large performance problems, see 13821 typeshed/8231 had zero hits on mypy_primer, so it's not the worst thing to undo. Patching this in typeshed also feels weird, since there's a more general soundness issue. If a typevar has a bound or constraint, we might not want to solve it to a Literal. If we can confirm the performance regression or fix the unsoundness within mypy, I might pursue upstreaming this in typeshed. (Reminder: add this to the sync_typeshed script once merged)
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Diff from mypy_primer, showing the effect of this PR on open source code: sphinx (https://github.com/sphinx-doc/sphinx)
+ sphinx/builders/gettext.py:191:7: error: Cannot instantiate abstract class "LocalTimeZone" with abstract attribute "tzname" [abstract]
bandersnatch (https://github.com/pypa/bandersnatch)
+ src/bandersnatch_storage_plugins/swift.py: note: In member "write_bytes" of class "SwiftPath":
+ src/bandersnatch_storage_plugins/swift.py:408: error: Signature of "write_bytes" incompatible with supertype "Path" [override]
+ src/bandersnatch_storage_plugins/swift.py:408: note: Superclass:
+ src/bandersnatch_storage_plugins/swift.py:408: note: def write_bytes(self, data: Union[bytes, Union[bytearray, memoryview, array[Any], mmap, _CData, PickleBuffer]]) -> int
+ src/bandersnatch_storage_plugins/swift.py:408: note: Subclass:
+ src/bandersnatch_storage_plugins/swift.py:408: note: def write_bytes(self, contents: bytes, encoding: Optional[str] = ..., errors: Optional[str] = ...) -> int
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Yikes, looks like tuple is broken. My bet is the change to remove Sized. Speculating wildly, it's something to do with the ABCMeta class (maybe it has some recursive relationship with tuple) |
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Looks like^ is basically correct, fixing in python/typeshed#9058. typeshed tests didn't catch it because it only shows up after #13579 |
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Sync typeshed
Source commit:
python/typeshed@8036bbd
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