[Python-Dev] Tuple/list assignment question (original) (raw)

Dave Cole djc at object-craft.com.au
Wed Aug 4 01:55:49 CEST 2004

Nick Coghlan wrote:

Dave Cole wrote:

Is there any reason why something like this would not be a good idea?

>>> alist = [1, 2, 3, 4, 5] >>> a, b, *c = alist You could then do things like this: >>> lol = [[1, 2], [3, 4, 5, 6, 7], [8, 9, 10, 11, 12, 13]] >>> for a, b *c in lol: ... - Dave As opposed to: >>> for a, b, c in ((x[0], x[1], x[2:]) for x in lol): print a, b, c

Yes, as opposed to.

With generator expressions around, I don't know that this case is common enough for special casing. . .

This begs the question; do you prefer:

args = [4, 5, 6] a_func(1, *args)

or this:

args = [4, 5, 6] apply(a_func, [1] + args)

-- http://www.object-craft.com.au

More information about the Python-Dev mailing list