While trying to use PySide2 in ipython, I discovered:
Will produce a long list of printed exceptions to stdout:
I've discussed this with the developers of "jedi", the library that helps with tab completion in ipython, to narrow the issue down to where it looks like this may be an issue in PySide2. You can see the discussion with them here: https://github.com/davidhalter/jedi/issues/1294
The end result of the conversation points to this piece of pyside/shiboken: https://github.com/pyside/pyside2-setup/blob/ff8b698d3547b39ba20c97a4c68881a4a789b211/sources/shiboken2/libshiboken/signature.cpp#L403
Note: I don't have access to PySide2 5.12 as 5.6 is the only version available with conda-forge.