Spec and conformance tests disagree on converting constructors into callable for classes with `__new__` and `__init__`
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Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 48/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- python
- Domain
- documentation, testing-qa
Research direction
Compare the constructor behavior described in docs/spec/constructors.rst around the linked section with the case in conformance/tests/constructors_callable.py. Determine which callable type is intended for a class defining both new and init, then align the specification and conformance test and run the relevant constructor conformance checks.
Written by the indexing model from the issue text.
Description
For classes with both __new__ and __init__, when converting the constructor into a Callable, the spec says that
class B:
""" __new__ and __init__ """
def __new__(cls, *args, **kwargs) -> Self:
...
def __init__(self, x: int) -> None:
...
reveal_type(accepts_callable(B)) # ``def (*args, **kwargs) -> B | def (x: int) -> B``
The conformance test says that
- Dominant language
- Python
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- Merged PRs (30d)
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