Python Console and InterfaceWithPython Crash on Linux

[tarkpate]

SCIRun causes a segmentation fault with both Python Console and InterfaceWithPython if both are present before first execution.

Steps to reproduce the behavior:

1. Open SCIRun
2. Open the Python Console
3. Add InterfaceWithPython module
4. Execute
5. Segmentation Fault

Version
I did not get seg faults on macOS, both the release version and built from master.
On both of my Linux machines, I was able to reproduce this.

[dcwhite]

@RubioJr9 Could you try a full headless build on Linux, and run a network with an IWP module in it from the command line? If it crashes that way I might be able to work on this sooner...my home Linux box is in pieces...

[dcwhite]

- name: Build run: ./build.sh -DBUILD_HEADLESS:BOOL=ON -DUSER_PYTHON_VERSION="3.6.7" -DBUILD_TESTING:BOOL=ON -j3

[tarkpate]

Yeah, I'll try that

[tarkpate]

It built headless on linux. I ran a network with just IWP but I don't think it can replicate headless because there won't be a Python Console window opening.

[dcwhite]

Might be Qt-thread related then. I just need to find a screwdriver to install another fan on my Linux box, then I can attempt to replicate this one...

[github-actions]

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