Richard Thomas schrieb: > I like that loop variables end up still in scope, as demonstrated so > far on this list it is quite useful, but only when there is a break > somewhere. The one that confuses me, therefore, is the dummy variables > in a generator expression leaking into the scope defining that > expression. Hence: > > x = 0 > L = [f(x) for x in range(2)] > assert x == 1 > > This is not particularly intuitive as the for loop in a generator > expression can never break; generator expressions feel more "closed".
It's fixed in Python 3: Python 3.0a4+ (py3k:62372, Apr 18 2008, 17:45:09) [GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> x = 0 >>> l = [str(x) for x in range(2)] >>> x 0 Robin _______________________________________________ Python-3000 mailing list Python-3000@python.org http://mail.python.org/mailman/listinfo/python-3000 Unsubscribe: http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com
