Le 08/10/2011 12:50, Jon Clements a écrit :
10 - 5 as 10 + -5 (as obviously the - is redundant as an operation), and 10 / 2 as int(10 * .5) or something, who needs a divide!?
OK, I see your point but I was supposing non-membershipness seldom needed and in fact one can suppose that test membership is heavily more used than test non-membership.
In fact, it seems that most Python operators have an "antonym" operator, for instance :
== vs != < vs >= is vs is not + vs - etc -- http://mail.python.org/mailman/listinfo/python-list
