Argument against iterable ints...

[Alex Martelli]

Magnus Lie Hetland wrote:

> Just a situation that cropped up recently: While writing a little
> generator for flattening nested iterables, I used
> 
>   try: iter(foo)
>   except: return foo
>   else:
>       ....
> 
> (of course I could have used a for loop directly in the try clause --
> that doesn't change anything.)

It consumes the first item of foo if foo is an iterator, and thus:

try: for __ in foo: break
except: return foo
else:
    ...

has subtly different semantics from your code above.  I agree this
does not affect your main point (on which I agree with you).


Alex