On Sat, 24 Dec 2011 19:41:55 +0100, Thomas Rachel wrote: >> The only times you need the brackets around a tuple is to control the >> precedence of operations, or for an empty tuple. > > IBTD: > > a=((a, b) for a, b, c in some_iter) > b=[(1, c) for <whatever>] > > Without the round brackets, it is a syntax error.
Correction noted. Nevertheless, the parentheses don't create the tuple, the comma operator does. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
