import sys, signal
from PySide import QtCore, QtGui
 
app = QtGui.QApplication(sys.argv)
 
win = QtGui.QWidget()
 
win.resize(320, 240)  
win.setWindowTitle("Hello, World!") 
win.show()  

signal.signal(signal.SIGINT, signal.SIG_DFL) 

sys.exit(app.exec_())