[Python-Dev] Mini-Pep: An Empty String ABC

[Antoine Pitrou]

Raymond Hettinger <python <at> rcn.com> writes:
> 
> By subclassing Sequence, we get index() and count() mixins for free.
> 

It seems to me that Sequence.index()/count() and String.index()/count() 
shouldn't have the same semantics.
In the former case they search for items in the Sequence, in the latter case 
they search for substrings of the String.