Duncan Booth wrote: > Eighty wrote: > > > I suggest a new extension of the list comprehension syntax: > > > > [x for x in xs while cond(x)] > > > > which would be equivalent to > > > > list(itertools.takewhile(cond, xs)) > > > > What would this syntax offer that: > > [x for x in takewhile(cond, xs)] > > doesn't currently offer? (Apart, that is, from saving you 3 characters of > typing)
The same thing that [f(x) for x in xs] offers that map(f, xs) doesn't, and the same thing that [x for x in xs if f(x)] offers that filter(f, xs) doesn't. It's more "pythonic". You can use an expression for cond instead of a lambda. -- http://mail.python.org/mailman/listinfo/python-list
