Steven D'Aprano wrote: > If you are happy to always return a list of tuples regardless of what the > two operands are, generators make it so easy it is shameful. Even if you > want a special case of two string arguments returning a string, it is > hardly any more difficult: > > def cartprod(A, B): > if type(A) == type(B) == str: > convert = lambda obj: "".join(list(obj)) > else: > convert = lambda obj: obj # do nothing > for a in A: > for b in B: > yield convert((a, b))
I didn't deny that it's handy; my "imul" example was pretty much the same. If you don't want to use the a*b syntax, it's a good solution. -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
