BUG: package should require pyqt=4 about pyfai-feedstock

[chiahaoliu]

or submit an issue to pyFAI could be a better solution too.

[CJ-Wright]

@chiahaoliu Thank you for reporting!

It seems that the error is coming from here.

pyFAI seems to have support for Qt4, Qt6 and PySide so this should work?

Can you post the output of the following is?

if 'PySide' in sys.modules:
    BINDING = 'PySide'

elif 'PyQt5' in sys.modules:
    BINDING = 'PyQt5'

elif 'PyQt4' in sys.modules:
    BINDING = 'PyQt4'
print(BINDING)

[chiahaoliu]

That error seems related to my unclean local environment in both OSX and Linux and it's not reproducible in separate environments

My final test was on an environment with following package management steps:

conda create -n sandbox ipython python=3 numpy scipy
source activate sandbox
conda install pyqt=4
conda install pyfai  # this force qt upgrade to 5
python -m pyFAI.calibration  # pass

conda install pyqt=4 # force downgrade
python -m pyFAI.calibration  # pass, pyfai works with both qt4 and qt5