Segmentation fault when running manage.py django commands with zope.interface 7.0.1

[flapedriza]

BUG/PROBLEM REPORT / FEATURE REQUEST

What I did:

Run Django manage.py commands with zope.interface==7.0.1 installed.
After downgrading to zope.interface 6.3, this error stopped occurring

What I expect to happen:

manage.py commands to run successfully.

What actually happened:

When I run any manage.py command I get segmentation fault:

# ./manage.py showmigrations
Segmentation fault (core dumped)

I identified that the problem was this package because if I run python -v manage.py showmigrations I get the following:

...
import 'gevent.libev' # <_frozen_importlib_external.SourceFileLoader object at 0x7f257f77d820>
# extension module 'gevent.libev.corecext' loaded from '/usr/local/lib/python3.8/site-packages/gevent/libev/corecext.cpython-38-x86_64-linux-gnu.so'
# possible namespace for /usr/local/lib/python3.8/site-packages/zope
# /usr/local/lib/python3.8/site-packages/zope/interface/__pycache__/__init__.cpython-38.pyc matches /usr/local/lib/python3.8/site-packages/zope/interface/__init__.py
# code object from '/usr/local/lib/python3.8/site-packages/zope/interface/__pycache__/__init__.cpython-38.pyc'
# /usr/local/lib/python3.8/site-packages/zope/interface/__pycache__/interface.cpython-38.pyc matches /usr/local/lib/python3.8/site-packages/zope/interface/interface.py
# code object from '/usr/local/lib/python3.8/site-packages/zope/interface/__pycache__/interface.cpython-38.pyc'
# /usr/local/lib/python3.8/site-packages/zope/interface/__pycache__/ro.cpython-38.pyc matches /usr/local/lib/python3.8/site-packages/zope/interface/ro.py
# code object from '/usr/local/lib/python3.8/site-packages/zope/interface/__pycache__/ro.cpython-38.pyc'
import 'zope.interface.ro' # <_frozen_importlib_external.SourceFileLoader object at 0x7f257f4c4b20>
# /usr/local/lib/python3.8/site-packages/zope/interface/__pycache__/_compat.cpython-38.pyc matches /usr/local/lib/python3.8/site-packages/zope/interface/_compat.py
# code object from '/usr/local/lib/python3.8/site-packages/zope/interface/__pycache__/_compat.cpython-38.pyc'
import 'zope.interface._compat' # <_frozen_importlib_external.SourceFileLoader object at 0x7f257f4c4d30>
# /usr/local/lib/python3.8/site-packages/zope/interface/__pycache__/exceptions.cpython-38.pyc matches /usr/local/lib/python3.8/site-packages/zope/interface/exceptions.py
# code object from '/usr/local/lib/python3.8/site-packages/zope/interface/__pycache__/exceptions.cpython-38.pyc'
import 'zope.interface.exceptions' # <_frozen_importlib_external.SourceFileLoader object at 0x7f257f4ccfa0>
Segmentation fault (core dumped)

Weird thing is that if I run python -vv manage.py showmigrations (more verbose), I get the migrations and no segfault.

Furthermore, if I clean the pyc files with the following command: find . | grep -E "(/__pycache__$|\.pyc$|\.pyo$)" | xargs rm -rf the manage.py run inmediately after that works, but the following ones cause a segfault too.

What version of Python and Zope/Addons I am using:

• Python 3.8.17
• Django 2.2.28
• zope.interface 7.0.1
• Running inside a docker container based on python:3.8-slim-buster
  zope.interface is a dependency installed by gevent:

gevent==20.9.0
├── greenlet [required: >=0.4.17, installed: 1.1.3]
├── setuptools [required: Any, installed: 57.5.0]
├── zope.event [required: Any, installed: 5.0]
│   └── setuptools [required: Any, installed: 57.5.0]
└── zope.interface [required: Any, installed: 7.0.1]
    └── setuptools [required: Any, installed: 57.5.0]

[davisagli]

I am having trouble reproducing this.

I started a python:3.8-slim-buster container, ran pip install Django==2.2.28 gevent==20.9.0. This failed with a different error while building gevent.

Then I ran pip install Django==2.2.28 gevent to install a newer version of gevent. After this I was able to create a Django project and run manage.py commands without error.

I'll close the issue, unless you can provide more specific instructions for how to reproduce the error, or use gdb to get a C-level stack trace of where the segmentation fault occurred.