Python equivalent for perl's "next"-statement?
Hung Jung Lu
hungjunglu at yahoo.com
Thu Oct 23 10:19:16 EDT 2003
jjl at pobox.com (John J. Lee) wrote in message news:<87ekx5rvk2.fsf at pobox.com>...
> def next_foo(foo):
> return foo**2
>
> while condition(foo):
> ...
> if hmm():
> foo = next_foo()
> continue
> ...
> if hmph(): break
> ...
> if hrm():
> foo = next_foo()
> continue
> ....
> foo = next_foo()
>
> Yuck!
Exception handling is often used for this purpose. (Common practice in
Python, believe it or not.)
class Next(Exception): pass
while condition(foo):
try:
...
if hmm(): raise Next
...
if hmph(): break
...
if hrm(): raise Next
...
except Next: pass
foo = foo**2
regards,
Hung Jung
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