Open
Description
Context: python/typeshed#6289
To reproduce:
- check out typeshed
git checkout 9eabedca5f47a710f29d6e3e2b3a389853fab5aa- apply this patch
diff --git a/stdlib/builtins.pyi b/stdlib/builtins.pyi
index 2393f3c9..0d2ea882 100644
--- a/stdlib/builtins.pyi
+++ b/stdlib/builtins.pyi
@@ -717,6 +717,7 @@ class bool(int):
def __rxor__(self, __x: int) -> int: ...
def __getnewargs__(self) -> tuple[int]: ...
+@final
class slice(object):
start: Any
step: Any
Then run:
mypy --python-version 3.10 --no-incremental --custom-typeshed-dir . stdlib/_ast.pyi stdlib/ast.pyi
and note that mypy incorrectly resolves slice to builtins.slice instead of ast.slice in ast.pyi
Note that if you change the order of files, it works just fine:
mypy --python-version 3.10 --no-incremental --custom-typeshed-dir . stdlib/ast.pyi stdlib/_ast.pyi
It's a pretty weird case, import cycle with builtins, collision with name in builtins, from _ast import * in ast.pyi, etc. But a scary kind of bug :-)