AttributeError: partially initialized module 'torch._dynamo' has no attribute 'external_utils'

[ego-thales]

Hello,

While using pytest-timeout, I got the following error on most of my tests after the first occuring timeout:

FAILED test/test_mytests.py::test_mytestfunc[ID] - AttributeError: partially initialized module 'torch._dynamo' has no attribute 'external_utils' (most likely due to a circular import)

If I put a large enough time-out, I never get this problem. So I guess that the triggering mechanism of pytest-timeout causes an issue. I don't know if it plays a role, but I use a second decorator @pytest.mark.parametrize.

For some env context, I'm on Ubuntu22.04, using python 3.12 and (amongst others):

pytest                   8.3.3       pytest: simple powerful testing with Python
pytest-timeout           2.3.1       pytest plugin to abort hanging tests
torch                    2.5.1       Tensors and Dynamic neural networks in Python with strong GPU acceleration

Any idea on how to fix the issue? I could find this error only on one other issue.

Thank you!