Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

Appearance settings

Mypyc produces module that crashes (segmentation fault) when executed #18992

Copy link
Copy link
Open
@svalentin

Description

@svalentin
Issue body actions

compiled.py:

from typing import Generic, TypeVar

_T = TypeVar("_T")

class Bar(Generic[_T]):
    def __init__(self) -> None:
        self.value: str = 'start'
    def __get__(self, instance: _T, owner: type[_T] | None = None) -> str:
        return self.value
    def __set__(self, instance: _T, value: str) -> None:
        self.value = value

class Foo(object):
    bar: Bar = Bar()

Compiled with python3 -m mypyc compiled.py.

test.py:

import compiled

print("hello")

f = compiled.Foo()
print(f.bar)

f.bar = 'test'
print(f.bar)

And running with:

$ python3 test.py
hello
<compiled.Bar object at 0x7464e7774310>
Segmentation fault

Using current master of mypyc:

$ python3 -m mypyc --version
mypy 1.16.0+dev.7b4f6311e29452cc8d4ddb78331d0047c8b17e93.dirty (compiled: no)

Using Python 3.13.1

If running with python3 directly:

$ python3 test.py
hello
start
test

Metadata

Metadata

Assignees

No one assigned

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions

      Morty Proxy This is a proxified and sanitized view of the page, visit original site.