(🐞) overloaded instance not accepted as instance
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bug
- Dominant language
- Python
- Stars
- 20.6k
- Forks
- 3.3k
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Description
from typing import overload
class A:
def __init__(self, _): ...
def __call__(self, a: int = 1): ...
@overload
def f(): ...
@overload
def f(a: int): ...
@A
def f(): ...
a: A = f # E: Incompatible types in assignment (expression has type overloaded function, variable has type "A") [assignment]
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First steps
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Research direction
Start with the supplied reproducer, tracing how mypy checks assignment of the overloaded function decorated with the callable instance A. Confirm the behavior against the reported diagnostic and related overload handling. Done means the overloaded instance is accepted as an A while incompatible assignments still produce the appropriate error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100