#!/usr/bin/env python

import builtins
import sys

from PySide6.QtCore import QLibraryInfo, QCoreApplication

if __name__ == '__main__':
    print('Python {}.{}'.format(sys.version_info[0], sys.version_info[1]))
    print(QLibraryInfo.build())

    builtins._ = 4
    print("Before instantiation:", _)
    app = QCoreApplication()
    print("After instantiation:", _)