John J. Lee wrote: > Peter Otten <[EMAIL PROTECTED]> writes: > [...] > >> def f(s): >> return (s,) >> > > Forgive me if this is a stupid question, but: What purpose does > function f serve? > > > John >
Well, it has nothing to do with the unicode bit that came before it. It just takes an argument, and wraps it in a 1-tuple. Guessing by the argument of "s", that argument is expected to be a string. One use I can think of is that sometimes you'll find a function that returns a string or a list or tuple of strings. If you want to pass that result on to a for loop, and only loop once on the string (instead of looping on each letter of the string), you might want to wrap it in a tuple or a list before passing it to the loop. Cheers, Cliff -- http://mail.python.org/mailman/listinfo/python-list
