Vitor Bosshard wrote: > Are you even sure the list comprehension doesn't already shortcut evaluation?
It does not. The body of the comprehension is evaluated all the way to completion, despite the fact that a.next() does not return until there is a successful test of the if expression. >>> def print_range(n): ... for i in range(n): ... print(i) ... yield i ... >>> a = (i for i in print_range(10) if i**2<10) >>> a.next() 0 0 >>> a.next() 1 1 >>> a.next() 2 2 >>> a.next() 3 3 >>> a.next() 4 5 6 7 8 9 Traceback (most recent call last): File "<stdin>", line 1, in <module> StopIteration -- Scott Dial sc...@scottdial.com scod...@cs.indiana.edu _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
