Segmentation fault on Windows in Python 3.14.0rc1 when running xdoctest test suite via pytest #137384
Description
Bug report
Bug description:
I'm working to test my packages against 3.14 before it is released, and I'm seeing an error in xdoctest. Specifically, I see a segmentation fault (exit code 139) on Python 3.14.0rc1 on Windows during CI. The test suite passes on all other platforms and Python versions.
I unfortunately don't have a local Windows machine to further debug this, but here's the GitHub Actions job showing the issue:
https://github.com/Erotemic/xdoctest/actions/runs/16727556954/job/47347171954
and here is the parent run where I've done a little initial debugging
https://github.com/Erotemic/xdoctest/actions/runs/16727556954
I've found that this is likely not a problem in xdoctest, as it only occurs when the optional packages are installed. These are listed in details:
optional.txt:
-r colors.txt -r jupyter.txt pyflakes >= 2.2.0 # xdev availpkg tomli tomli>=0.2.0 ; python_version < '3.11.0' and python_version >= '3.6' # Python 3.6+ jupyter.txt
nbconvert>=6.1.0; python_version >= '3.7.0' and platform_python_implementation != "PyPy" # Python 3.7+ # For nbconvert jinja2>=3.0.0 ; platform_python_implementation != "PyPy" # Python 3.6+ jupyter_client>=7.0.0 IPython>=7.23.1 # Requires psutil? Breaking on pypy windows? ipykernel>=6.11.0 ; python_version < '4.0' and python_version >= '3.12' and (platform_system!="Windows" or platform_python_implementation != "PyPy") # Python 3.12+ ipykernel>=6.0.0 ; python_version < '3.12' and python_version >= '3.7' and (platform_system!="Windows" or platform_python_implementation != "PyPy") # Python 3.7-3.11 # For IPython-kernel debugpy>=1.6.0 ; python_version >= '3.10' # Python 3.10+ debugpy>=1.3.0 ; python_version < '3.10' and python_version >= '3.9' # Python 3.9 debugpy>=1.0.0 ; python_version < '3.9' and python_version >= '3.8' # Python 3.8 # Needed for 3.10 tests # Needed for earlier versions of nbconvert ipython_genutils >= 0.2.0 ; platform_python_implementation != "PyPy" # Python 3.10+ # For IPython jedi>=0.16 attrs>=19.2.0 # For jupyter-client jupyter_core >= 4.7.0 and colors.txt:
Pygments >= 2.15.1 colorama >= 0.4.1;platform_system=="Windows" I will attempt to debug this further as I have time, but I at least wanted to raise the issue in case it helps with the 3.14 release.
CPython versions tested on:
3.14
Operating systems tested on:
Windows