bool (iterator)
Martin v. Loewis
martin at v.loewis.de
Mon Aug 5 04:29:50 EDT 2002
Chirayu <thephoenix235 at gmx.net> writes:
> Is there a way for me to check if an iterator has "run out". I was
> hoping bool (iterator) would help but it always returns true.
That is what the else clause of a for loop is good for: It will be
only executed if the for loop ran to completion.
> iterObj = iter (obj)
> while 1:
> for i in iterObj:
> process i
> break based on some condition
> # continue until we've exhausted the iterator
> if bool (iterObj)==0: break
You can write this as
iterObj = iter (obj)
while 1:
for i in iterObj:
process i
break based on some condition
else:
# break out of while loop if the iterator is exhausted
break
HTH,
Martin
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