Le Mercredi 26 Avril 2006 10:13, Licheng Fang a écrit : > I wanna use nested lists as an array, but here's the problem: > >>> a = [[0]*3]*3 > >>> a > > [[0, 0, 0], [0, 0, 0], [0, 0, 0]] > > >>> a[0][0] = 1 > >>> a > > [[1, 0, 0], [1, 0, 0], [1, 0, 0]] > > Could anybody please explain to me why three values were change? I'm > bewildered. Thanks!
I guess is a probleme of reference. Write that instead: >>>l = [ [0]*3 for i in xrange(3) ] cordialement, -- http://mail.python.org/mailman/listinfo/python-list
