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inpython/mypy (press backspace or delete to remove)func-returns-value seems to have an allowance for functions which themselves return None -- but not for functions which
return a union with None
Bug Report
def returns_none() - None: ...
def also_returns_none() ...
bug
asottile
- Opened 21 minutes ago
- #19433
def main(cond: bool) - None:
woo = None
if cond and (woo := 5) in range(10):
reveal_type(woo) # should reveal int, reveals int | None
bug
good-second-issue
topic-pep-572
topic-type-narrowing
hauntsaninja
- 4
- Opened yesterday
- #19430
Mypy configuration is incomplete
img width= 324 height= 116 alt= Image src=
https://github.com/user-attachments/assets/ca5073e4-bf38-41c5-9034-79498a61b383 /
bug
pending
heyshahabuddin
- 1
- Opened yesterday
- #19429
!-- If you re not sure whether what you re experiencing is a mypy bug, please see the Question and Help form instead.
Please consider:
- checking our common issues page: https://mypy.readthedocs.io/en/stable/common_issues.html ...
bug
topic-daemon
SemMulder
- 8
- Opened 2 days ago
- #19425
!-- If you re not sure whether what you re experiencing is a mypy bug, please see the Question and Help form instead.
Please consider:
- checking our common issues page: https://mypy.readthedocs.io/en/stable/common_issues.html ...
bug
pending
topic-type-narrowing
topic-type-variables
InvincibleRMC
- 4
- Opened 2 days ago
- #19421
!-- If you re not sure whether what you re experiencing is a mypy bug, please see the Question and Help form instead.
Please consider:
- checking our common issues page: https://mypy.readthedocs.io/en/stable/common_issues.html ...
bug
topic-enum
cfriedland5
- Opened 3 days ago
- #19418
mypy parses NamedTuple class definition in the same way it parses regular class variables:
from typing import NamedTuple
from typing import reveal_type
class A(NamedTuple):
foo: str = foo
reveal_type(A.foo) ...
topic-named-tuple
topic-runtime-semantics
Gatsik
- Opened 4 days ago
- #19414
!-- If you re not sure whether what you re experiencing is a mypy bug, please see the Question and Help form instead.
Please consider:
- checking our common issues page: https://mypy.readthedocs.io/en/stable/common_issues.html ...
bug
randolf-scholz
- 1
- Opened 4 days ago
- #19413
!-- If you re not sure whether what you re experiencing is a mypy bug, please see the Question and Help form instead.
Please consider:
- checking our common issues page: https://mypy.readthedocs.io/en/stable/common_issues.html ...
crash
gopidesupavan
- 6
- Opened 4 days ago
- #19412
Feature
Is it in-scope for either mypy or stubtest to detect incorrect or missing defaults in overloads?
Incorrect default
from typing import Literal, overload, reveal_type
@overload
def foo(a: Literal[True] ...
feature
MarcoGorelli
- 4
- Opened 4 days ago
- #19411

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