paraview python plugin loading with virtualenv

ParaView Support
1

I have a python plugin that is importing some modules that are not included in the Paraview 6.0.0 distribution, but using the –venv option I can add them to a virtualenv and then the plugin works fine.

If I load the plugin from the Plugin Manager everything is ok.

Now I would like to automatically import that plugin putting its path in the PV_PLUGIN_PATH env variable, but the issue is that the plugin loading is done before the virtualenv is considered, so I get an error saying that a module is missing.

Is there a way to post-pone the plugin automatic loading after the virtualenv has been added ?

Thanks in advance for any suggestion

2

@jourdain Is there any reason to not move –venv handling to be before plugin loading?

3

what about loading your plugin after importing paraview.simple in your Python script. By then, all paths should be set correctly. Example:

import h5py
import numpy as np
from paraview.simple import *

LoadPlugin("VTKmFilters", ns=globals())

1 Like
4

It should be fine to set up the –venv before plugin loading. The Python environment should be set up by that time anyway. It was just an oversight in my implementation.

5

Issue reported: https://gitlab.kitware.com/paraview/paraview/-/issues/23087. Fix incoming.

6

Fix here: https://gitlab.kitware.com/paraview/paraview/-/merge_requests/7460