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Bug: Circular Import - `pyvista.FieldAssociation`

See original GitHub issue

Describe the bug, what’s wrong, and what you expected.

Reposting from pyvistaqt issue #168, for some unknown reason, pyvista seems to have a circular import bug when importing in some (but not all) virtual environments.

Steps to reproduce the bug.

py -m venv .venv && .venv\Scripts\Activate.ps1
py -m pip install pyvista
Run python in terminal:

Python 3.8.10 (tags/v3.8.10:3d8993a, May  3 2021, 11:48:03) [MSC v.1928 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyvista
Traceback (most recent call last):   
  File "<stdin>", line 1, in <module>
  File "%USERPROFILE%\example\.venv\lib\site-packages\pyvista\__init__.py", line 14, in <module>
    from pyvista.core import *
  File "%USERPROFILE%\example\.venv\lib\site-packages\pyvista\core\__init__.py", line 3, in <module>
    from .dataset import DataSet, DataObject
  File "%USERPROFILE%\example\.venv\lib\site-packages\pyvista\core\dataset.py", line 36, in <module>
    from .filters import DataSetFilters, _get_output
  File "%USERPROFILE%\example\.venv\lib\site-packages\pyvista\core\filters\__init__.py", line 58, in <module>
    from .data_set import DataSetFilters
  File "%USERPROFILE%\example\.venv\lib\site-packages\pyvista\core\filters\data_set.py", line 9, in <module> 
    from pyvista import FieldAssociation, _vtk
ImportError: cannot import name 'FieldAssociation' from partially initialized module 'pyvista' (most likely due to a circular import) (%USERPROFILE%\example\.venv\lib\site-packages\pyvista\__init__.py)

System Information

--------------------------------------------------------------------------------
  Date: Mon Aug 08 13:26:22 2022 Pacific Daylight Time

                OS : Windows
            CPU(s) : 96
           Machine : AMD64
      Architecture : 64bit
       Environment : Python
        GPU Vendor : NVIDIA Corporation
      GPU Renderer : Quadro RTX 8000/PCIe/SSE2
       GPU Version : 4.5.0 NVIDIA 516.94

  Python 3.8.10 (tags/v3.8.10:3d8993a, May  3 2021, 11:48:03) [MSC v.1928 64
  bit (AMD64)]

           pyvista : 0.36.1
               vtk : 9.1.0
             numpy : 1.23.1
           imageio : 2.21.1
           appdirs : 1.4.4
            scooby : 0.5.12
        matplotlib : 3.5.2
--------------------------------------------------------------------------------

Screenshots

No response

Issue Analytics

State:
Created a year ago
Comments:11 (11 by maintainers)

Top GitHub Comments

2reactions

adeakcommented, Aug 9, 2022

Well, I still don’t get it, but as long as it’s fixed.

1reaction

adam-grant-hendrycommented, Aug 9, 2022

Well, I still don’t get it, but as long as it’s fixed.

I literally opened the file in my editor and hit save (force of habit), so I’m sure that’s why it edited it.

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