shouldn't 'string'.find('ugh') return 0, not -1 ?

[Tim Chase]

> if I check a string for for a substring, and this substring isn't found, 
> should't the .find method return 0 rather than -1?
> this breaks the 
> 
> if check.find('something'):
>     do(somethingElse)
> 
> idiom, which is a bit of a pity I think.

That idiom is spelled:

   if 'something' in check:
     do(somethingElse)

Unless you really do need to start at a particular offset where 
you use the additional parameters of find(), such as 
find('something', 3, 42).  In that case, you can slice your target:

  if 'something' in check[3:42]:
    do(somethingElse)

The above is untested, so check for fencepost errors, but the 
theory holds.

So pretty much, I'd never consider using find() :)

-tkc