segmentation fault on indexing object with __getattr__ #6579
Description
Please provide more information to help us understand the issue:
- Are you reporting a bug, or opening a feature request?
Bug. - Please insert below the code you are checking with mypy,
or a mock-up repro if the sourc 6398 e is private. We would appreciate
if you try to simplify your case to a minimal repro.
class C:
def __getattr__(self, name: str) -> 'C':
...
def f(v: C) -> None:
v[0]-
What is the actual behavior/output?
segfault -
What is the behavior/output you expect?
not crashing -
What are the versions of mypy and Python you are using?
python 3.6.7 on Ubuntu 18.04.2 x86_64
mypy 0.670 installed march 20 2019 via pipDo you see the same issue after installing mypy from Git master?
yes
0.680+dev.4e0a1583aeb00b248e187054980771f1897a1d31 -
What are the mypy flags you are using? (For example --strict-optional)
none