PyQt5 5.12 Crashing Unpredictably about pyvista

[mmagnuski]

@banesullivan Sorry I didn't reply earlier, I didn't have much time to go back to vtki. I will create a new issue today in the evening or tomorrow.

[akaszynski]

I can debug this. This might be mitigated if we can find a way to enable plotting on appveyor.

[banesullivan]

Thanks @akaszynski!

[akaszynski]

Any Idea where this is happening? A quick check with 5.12 isn't giving me any any trouble. I'm using Python 3.7 and vtki==0.17.1

[banesullivan]

Seeing it happen when trying to use the BackgroundPlotter

plotter = vtki.BackgroundPlotter()

Only been using it in IPython notebooks

[akaszynski]

All test_qt_plotting tests passed. I didn't test with iPython. I'll try that out now.

[banesullivan]

Also, I changed the PyQt5 dependence to 5.11.3 in the CI scripts a while back because builds were failing right after the 5.12 release. Perhaps try branching and remove 5.11.3 dependence from the AppVeyor script and the requirements_test.txt file

[akaszynski]

AppVeyor doesn't test plotting since it seg-faults as there's no X11 equivalent on the windows server instance. There's probably a way of enabling it.

Also, local testing using notebooks, 5.12, and vtki==0.17.1 doesn't reveal any bugs. All the menu actions and general plotting functions work fine. Is there anything more specific?

[banesullivan]

Currently failing on Travis https://travis-ci.org/vtkiorg/vtki/builds/503217887

[mmagnuski]

Hi, I'm a windows user and vtki crashes for me.
Using it in notebook with:

from vtki import examples

crashes the kernel every time I tried.
My pyqt version is 5.9.2 though.

[banesullivan]

Hi @mmagnuski, thanks for posting your issue -that's definitely not good that a simple import of vtki crashes your kernel and if it crashes on import, is likely unrelated to PyQt.

Could you post your OS details, Python version, vtki version, and copy/paste the output from a pip list or conda list (whichever package manager you use) into a new issue along with the exact code that causes the crash?

Also, could you try importing vtki in simple Python interpreter from the command line in case there are error messages that the Jupyter Notebook is filtering?

[banesullivan]

Also, I'd be happy to go back and forth with you on slack to make sure you are up and running on Windows: http://slack.opengeovis.org