[EMAIL PROTECTED] wrote: > Hello I found this very strange; is it a bug, is it a "feature", am I > being naughty or what? > >>>> foo = [[0, 0], [0, 0]] >>>> baz = [ [0]*2 ] * 2 >... > Why on earth does foo and baz behave differently??
This is a frequently made mistake. try also: >>> bumble = [[0]*2 for 0 in xrange(2)] Think hard about why that might be. Then try: >>> [id(x) for x in foo] >>> [id(x) for x in baz] >>> [id(x) for x in bumble] Now check your upper scalp for lightbulbs. --Scott David Daniels [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
