coding style - try, except
Steve Holden
steve at holdenweb.com
Wed Feb 25 12:53:46 EST 2009
RGK wrote:
>
> I'm still learning, so eager to see if there is some community wisdom
> about use of the try/except structures in this situation.
>
> I find myself with some potentially risky stuff and wrap it in a
> try/except structure with good functional results, though my code leaves
> me a bit uneasy. Maybe it's just esoteric, but your input is appreciated.
>
> Consider
>
> try:
> do something 1
> do something 2
> do something 3
> do something 4
> ...
> do something 25
>
> except:
> print "Oops something didn't work"
>
>
> The risky things are just 1 & 2, and the others are not of concern, but
> are dependent on 1 & 2. The alternative is to do:
>
> wentOkay = True
> try:
> do something 1
> do something 2
>
> except:
> print "Oops something didn't work"
> wentOkay = False
>
> if wentOkay:
> do something 3
> do something 4
> ...
> do something 25
>
>
> Which seems a bit verbose, but likely the better approach. Is there
> some other option I should be considering?
>
> Any input appreciated :)
>
The first form is far preferable: it expresses the logic directly and
clearly, and is much easier to read than the second, which I personally
find somewhat contorted.
regards
Steve
--
Steve Holden +1 571 484 6266 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/
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