Comments (4)
gvanrossum
commented on July 22, 2024
It sound reasonable to have something for this. It should only be used in stubs I think. I don't think we should try to guess which built-in types are compatible for MI (nobody uses this anyway). Maybe name it extension_type?
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JukkaL
commented on July 22, 2024
We (me, Mark Shannon and Andrey Vlasovskikh) discussed this yesterday and didn't consider this as an essential feature.
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JukkaL
commented on July 22, 2024
Should this be postponed? Mypy no longer uses the @builtinclass decorator in stubs (though the implementation is still there).
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gvanrossum
commented on July 22, 2024
I'm closing this issue. We decided that it would be better to add understanding of __slots__ to mypy, including how it determines whether the new class has a __dict__. See python/mypy#1325.
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Related Issues (20)
- FYI: I removed the "stable" docs version
- Pre-draft proposal: Amend the prior removal of support for unpacking of typevartuples in union. (revisiting pep 646) HOT 1
- PR preview HOT 3
- Outdated stub package guidance HOT 1
- Integrate the Type Stubs document into the spec HOT 1
- Types for "truthy" and "falsy" values HOT 6
- Abstract classmethod returning object of type cls: "is not a supertype of its class" HOT 1
- hello
- Spec: Add PEP 696 (Type parameter defaults) HOT 2
- Spec: Add PEP 705 (Read-only TypedDict items) HOT 3
- Extra key of TypedDict HOT 2
- Reason given for disallowing non-concrete subtype assignment is unsound HOT 10
- Out-of-date description of how to indicate positional-only parameters
- Typing spec should be clearer that type checkers are not expected to support PEP 3141 HOT 22
- Incorporate PEP 483 into the spec HOT 5
- Conformance tests: Add mechanism to allow errors on one of multiple lines HOT 2
- Conformance tests: Add mechanism to ignore errors
- Conformance tests: Align automated and manual scoring HOT 1
- Introduce a `Language` type to provide consistent language information of strings. HOT 5
- Spec: Version and platform checking underspecified HOT 6
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