import unittest from PySide.QtCore import * class MyTimer (QTimer): def __init__(self): QTimer.__init__(self) self.startCalled = False @Slot() def slotUsedToIncreaseMethodOffset(self): pass class MyTimer2 (MyTimer): @Slot() def slotUsedToIncreaseMethodOffset2(self): pass def start(self): self.startCalled = True QCoreApplication.instance().quit() class TestBug1019 (unittest.TestCase): def testIt(self): app = QCoreApplication([]) t = MyTimer2() QTimer.singleShot(0, t.start) app.exec_() self.assertTrue(t.startCalled) if __name__ == "__main__": unittest.main()