ImportError: dynamic module does not define module export function

[getkeops]

ImportError: dynamic module does not define module export function

[bcharlier]

Hi @hassanhaija,

thank you for reporting this error. I put your message in a new issue as it is not exactly the same error message as in issue #2.

But, as in issue #2, this is most likely a problem in the configuration of your python virtual env (venv in short). The error is thrown by Pybind11 and is described here.

For some reason, various versions of Python, pytorch and gcc co-exist in your venv. Doing a fresh install of the venv should do the trick.

[thelittlekid]

Hi @bcharlier. I got the same error with the testing script for PyTorch (https://www.kernel-operations.io/keops/python/installation.html). I think I've met all the requirement listed on the installation page and started with a new virtual environment.

At the bottom of the error message, the source of this error seems to be somewhere in importlib.

File "/usr/lib/python3.5/importlib/init.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 986, in _gcd_import
File "<frozen importlib._bootstrap>", line 969, in _find_and_load
File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 666, in _load_unlocked
File "<frozen importlib._bootstrap>", line 577, in module_from_spec
File "<frozen importlib._bootstrap_external>", line 906, in create_module
File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
ImportError: dynamic module does not define module export function (PyInit_libKeOpstorch91c92bd508)

Markdown didn't show the file path in previous posts as they were wrapped by a pair of '<>'

[bcharlier]

Hi @thelittlekid,

unfortunately, I will give you the same answer as before. I guess that your environment is, for some reasons, not set as you think it is. By the way, posting an issue without any detail on your system, a completed error message, etc... prevent me writing a specific answer

So again, remove the keops cache dir, restart from a fresh install &nd check with the which command if everything is as you think it should.

Good luck.

b.

[thelittlekid]

Thanks for the quick reply. I did a fresh install with anaconda and it works now.
The system info and error messages were almost identical to the post on the top, except that I was using pip virtualenv. My guess is that there might be some issue with the base interpreter in the previous virtualenv as I was using the system interpreter /usr/bin/python3.5