CADWRDeltaModeling/pyhecdss

Error when importing pyhecdss

alinabi opened this issue · 3 comments

alinabi commented
  • pyhecdss version: 1.1.2
  • Python version: 3.8.8
  • Operating System: Linux (Nixos 20.09)

Description

I am trying to build pyhecdss from source. The build succeeds, but when I try to import the package I get an ImportError, potentially caused by a circular import. However, I cannot pinpoint where the circular import is happening.

What I Did

    Python 3.8.8 (default, Feb 19 2021, 11:04:50)
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyhecdss
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/nix/store/qbdyd3h28ar3ayx854pdmqjm6j60nvgn-python3.8-pyhecdss-1.1.2/lib/python3.8/site-packages/pyhecdss/__init__.py", line 1, in <module>
    from .pyhecdss import *
  File "/nix/store/qbdyd3h28ar3ayx854pdmqjm6j60nvgn-python3.8-pyhecdss-1.1.2/lib/python3.8/site-packages/pyhecdss/pyhecdss.py", line 2, in <module>
    from . import pyheclib
ImportError: cannot import name 'pyheclib' from partially initialized module 'pyhecdss' (most likely due to a circular import) (/nix/store/qbdyd3h28ar3ayx854pdmqjm6j60nvgn-python3.8-pyhecdss-1.1.2/lib/python3.8/site-packages/pyhecdss/__init__.py)                                                                                                                                                                           >>>
dwr-psandhu commented

@alinabi I am not sure why this was working before. In anycase, importing * in the init.py is probably the cause. Please see the commit and test against the latest commit.
If it works, lets close this issue. Thanks

vdemchuk-dwr commented

Trying to import pyhecdss through Google Colab and getting the same circular error message:

ImportError Traceback (most recent call last)
in
1 import pandas as pd
2 import numpy as np
----> 3 import pyhecdss

1 frames
/content/drive/MyDrive/Python_Ideas/pyhecdss/pyhecdss/pyhecdss.py in
1 import collections
----> 2 from .import pyheclib
3 import pandas as pd
4 import numpy as np
5 import os

ImportError: cannot import name 'pyheclib' from partially initialized module 'pyhecdss' (most likely due to a circular import) (/content/drive/MyDrive/Python_Ideas/pyhecdss/pyhecdss/init.py)

dwr-psandhu commented

@vdemchuk-dwr How are you installing pyhecdss into Google Colab ? I have never done that myself. Anyways pyhecdss is not as simple as most python packages as it is wrapping a C library. So at the very least the platform that runs Google Collab (i.e. Linux?) may be different from the compiled operating systems for pyhecdss (windows and linux redhat 5)

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