advice : how do you iterate with an acc ?
jeff at schwabcenter.com
Sat Dec 3 08:08:07 CET 2005
vd12005 at yahoo.fr wrote:
> i'm wondering how people from here handle this, as i often encounter
> something like:
> acc =  # accumulator ;)
> for line in fileinput.input():
> if condition(line):
> if acc: #1
> doSomething(acc) #1
> acc = 
> if acc: #2
> doSomething(acc) #2
> BTW i am particularly annoyed by #1 and #2 as it is a reptition, and i
> think it is quite error prone, how will you do it in a pythonic way ?
Could you add a sentry to the end of your input? E.g.:
for line in fileinput.input() + line_that_matches_condition:
This way, you wouldn't need a separate check at the end.
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