On Thu, 04 Oct 2012 18:11:28 +0200, Thomas Rachel wrote: > Am 04.10.2012 03:58 schrieb Steven D'Aprano: >> alist = [[None]*2400 for i in range(2400)] from random import randrange >> for i in range(1000): >> x = randrange(2400) >> y = randrange(2400) >> adict[(x, y)] = "something" >> alist[x][y] = "something" > >> The actual sizes printed will depend on how sparse the matrices are, >> but for the same above (approximately half full), > > I wouldn't consider 1000 of 5760000 "half full"...
Doh! I obviously can't multiply... I mean, well done, that was a deliberate test to see who was paying attention, and you passed! :) -- Steven -- http://mail.python.org/mailman/listinfo/python-list