I'm a little baffled by the inconsistency here. Anyone have any explanations?
>>> def gen(): ... yield 'a' ... yield 'b' ... yield 'c' ... >>> [c1 + c2 for c1 in gen() for c2 in gen()] ['aa', 'ab', 'ac', 'ba', 'bb', 'bc', 'ca', 'cb', 'cc'] >>> list(c1 + c2 for c1 in gen() for c2 in gen()) ['aa', 'ab', 'ac', 'ba', 'bb', 'bc', 'ca', 'cb', 'cc'] >>> it1 = gen() >>> it2 = gen() >>> list(c1 + c2 for c1 in it1 for c2 in it2) ['aa', 'ab', 'ac'] Why does this last list only have three elements instead of nine? -- http://mail.python.org/mailman/listinfo/python-list
