In Python (v3.6, Win10) I get an error, if I try to import QtChart. The command
>from PyQt5.QtChart import *
yields this message:
ImportError: DLL load failed. The specified procedure could not be found
The command pip list shows, that I have matching versions of PyQt5 and PyQtChart
PyQt5 5.15.1 PyQt5-sip 12.8.0 PyQtChart 5.15.1
which rules out this solution. What puzzles me, is that I get
>print(QtCore.PYQT_VERSION_STR)
>5.9.2
I am not sure, if this version number has to match with the one above.