Support for Python global interpreter lock

[patmarion]

Hi, I've found that it's possible to mix PythonQt code with PyQt code but you can get crashes due to the python global interpreter lock. A patch like this seems to resolve the issue:

patmarion@4abd4df

Has anyone done something similar?

[jcfr]

Thanks for the info. I haven't.

Should we propose this as patch to upstream pythonqt ? See https://github.com/MeVisLab/pythonqt

[pieper]

Are you sure this is enough so that you can really use both PythonQt and PyQt in the same session? Do they end up being two complementary ways to talk to the same Qt objects?