> How the callback function get this two number when it has only one > argument (event)?
It has one argument, event, which is an instance of a class that has both x and y attributes. > print "clicked at", event.x, event.y It doesn't accept the coordinates as separate parameters because every event binding uses that same signature, even ones for which coordinates might not make any sense. I recommend you look over the python tutorial: http://docs.python.org/tut/ -- http://mail.python.org/mailman/listinfo/python-list
