import sys

import PySide2.QtWidgets                                                                                     
from PySide2.QtCore import QLibraryInfo

print(sys.version, '\n', QLibraryInfo.build())

print("qApp=", PySide2.QtWidgets.qApp)
print("qApp== None", PySide2.QtWidgets.qApp == None)
print("id(qApp)=", hex(id(PySide2.QtWidgets.qApp)))
print("id(None)=", hex(id(None)))