John Salerno escribió:
> Alexis Roda wrote:
>>
>> > The
>> > try block seems nicer because it doesn't have such an ugly-looking
>> check
>> > to make.
>>
>
> Why do you think that this try block is preferred over what I have (if I
> were to stick with the try block)?
My example has nothing to do with your script, apart from trying to
illustrate why I think you should use "if" instead of "try" with a kind
of "reductio ad absurdum" reasoning.
To me i == 0 seems as ugly as len(sys.argv) == 1 (*), so, according to
your statement about ugly checks, you should avoid code like:
if i == 0 :
do_something_if_zero()
and write something like:
try:
x = 1 / i
except ZeroDivisionError :
do_something_if_zero()
but probably you wouldn't, the "if" block seems more "natural" than the
convoluted "try" block, so ...
Regards
(*) len(sys.argv) == 1 is exactly the same as len(sys.argv) - 1 == 0
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