[Python-Dev] string.find() again (was Re: timsort for jython)

[Samuele Pedroni]

[Greg Ewing]
>I thought Guido was against having "in" do anything
>other than membership tests, but his last message sounded
>like he was changing his mind.

If

"thon" in "python"

then why not

[1,2] in [0,1,2,3]

(it's a purely rhetorical question)

in general I don't think it is a good idea
to have "in" be a membership vs subset/subseq
operator depending on non ambiguity, convenience
or simply implementer taste,
because truly there are data types (ex. sets)
that would need both and disambiguated.

Either python grows a new subset/subseq operator
but probably this is overkill (keyword issue, new
__magic__ method, not meaningful, con
venient for a lot of types)

or strings (etc) should simply grow a new
method with an appropriate name.

"py"-in-"python"-is-dark-side-sexy-ly y'rs - Samuele Pedroni.