On Wed, Jun 16, 2021 at 10:51 AM Soni L. <[email protected]> wrote:
>
> Sometimes it would be useful to be able to write:
>
> def foo():
> try: return thing()
> except ValueError;
> try: return otherthing()
> except ValueError;
> try: return yetotherthing()
> except ValueError;
> if shouldraise(): raise
>
> But currently this needs to be written like so:
>
> def foo():
> try: return thing()
> except ValueError:
> try: return otherthing()
> except ValueError:
> try: return yetotherthing()
> except ValueError:
> if shouldraise(): raise
>
> Look at all that unnecessary indentation! Would be nice to get rid of it.
Dangerous idea - my first interpretation of that syntax was that it
would be equivalent to "except ValueError: pass", which would be very
confusing (it's subtly different in your example with return, and
drastically different in other cases).
Are you doing this sort of thing a lot? And if you are, do you
actually need/want the exception chaining that comes from burying more
and more code into the except clauses? I know this is just a trivial
example, but I'd be looking to see if it can be done with a loop
instead.
def foo():
for func in (thing, otherthing, yetotherthing):
try: return func()
except ValueError: pass
or something like that.
ChrisA
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