----- Original Message -----
> From: "acdr" <mail.a...@gmail.com>
> To: "Jean-Michel Pichavant" <jeanmic...@sequans.com>
> Cc: python-list@python.org
> Sent: Tuesday, 2 June, 2015 2:52:21 PM
> Subject: Re: for...else
>
> That would work for my example, but it would only really work if all
> the calculations are in a nice function.
You cannot blame me for considering the example you provided ;)
What about this:
class Cleanup(Exception): pass
try:
for x in it:
if c1():
raise Cleanup()
c2()
if c3():
raise Cleanup()
except Cleanup:
#do the cleanup
pass
If you can make c1 c3 raise themselves Cleanup, it's even better.
Now if you're able to write a cleanup function that can handle the case when
there's nothing to clean, everything becomes crystal clear:
from contextlib import contextmanager
@contextmanager
def cleanup():
yield
# here do the cleaning
print 'I am cleaning'
def do_the_job():
if c1() : return
c2()
if c3() : return
with cleanup():
do_the_job()
JM
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