Comments (5)
Yes, I did mean PEP-483, although the above is true for PEP-484 as well :)
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I think I didn't include it because PEP 483 is marked Informational, so it shouldn't be normative. I agree that it would be good to include concepts like "consistent-with" in the spec, but I don't know if PEP 483 is the right formalization to use at this point.
from typing.
PEP-484 omits quite a few details. For example, it only partially defines is-consistent-with. I would recommend adopting (or starting with) the definitions in http://bit.ly/python-subtyping by @kmillikin instead.
from typing.
PEP-484 omits quite a few details
I assume you mean 483 here?
I initially suggested 483 because I thought it might be less controversial, given it is already an accepted PEP. But personally, I like the clarity of the kmillikin spec quite a lot and would be happy to use it as a starting point.
from typing.
I think this can be considered a duplicate of #1534
from typing.
Related Issues (20)
- 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
- Support list comprehension for `TypeVarTuple` HOT 2
- Clarify the float/int/complex special case HOT 5
- Clarify the implications of subclassing Any HOT 1
- Allow multiple `TypeVarTuple` in Generic Classes when they are wrapped. HOT 5
- pytype conformance tests crash if no `python3.11` executable is in `PATH` HOT 5
- Conformance test: make dataclass_hash.py not rely on `typing.Hashable`? HOT 1
- Proposal: Add coerced type narrowing similar to 'cast' HOT 1
- Idenity Type HOT 2
- [spec] clarify assert_type behavior as asserting type equivalence
- [spec] better clarify the difference between a runtime type object and a static type HOT 1
- [spec] a protocol type should be assignable to object? HOT 1
- [spec] define or replace the term "concrete type" HOT 1
- [spec] conceptual foundation and glossary entries for variance
- [spec] Overload processing order HOT 2
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from typing.