#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from PyQt4.QtCore import * # no error
from PyQt4.QtGui import * # no error
class testWidget(QWidget): # error 'undefined variable: QWidget
def __init__(self, parent=None):
super(testWidget, self).__init__(parent)
if __name__ == '__main__':
import sys
import platform
print('Python Version {}, Qt Version {}, PyQt Version {}, System {}'.\
format(platform.python_version(), QT_VERSION_STR,
PYQT_VERSION_STR, platform.system()))
# error 'undefined variable: QT_VERSION_STR & PYQT_VERSION_STR
app = QApplication(sys.argv) # error 'undefined variable: QApplication
widget = testWidget()
widget.show()
app.exec_()