Erik Max Francis <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] wrote:
>
> > How do I check if a string contains (can be converted to) an int? I
> > want to do one thing if I am parsing and integer, and another if not.
>
> try:
> x = int(aPossibleInt)
> ... do something with x ...
> except ValueError:
> ... do something else ...
Correct, but even better is a slight variation:
try:
x = int(aPossibleInt)
except ValueError:
... do something else ...
else:
... do something with x ...
this way, you avoid accidentally masking an unexpected ValueError in the
"do something with x" code.
Keeping your try-clauses as small as possible (as well as your
except-conditions as specific as possible) is important, to avoid
masking bugs and thus making their discovery hader.
Alex
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