Hmm - I was looking at the following code for a PyQt4 program:
import sys
from PyQt4 import QtGui
app = QtGui.QApplication(sys.argv)
widget = QtGui.QWidget()
widget.resize(250, 150)
widget.setWindowTitle('simple')
widget.show()
sys.exit(app.exec_())
Could someone please explain what sys.argv does/means, and what it means in this context.