[Python-Dev] PEP for adding an sq_index slot so that any object, a or b, can be used in X[a:b] notation

[Adam Olsen]

On 2/9/06, Travis Oliphant <oliphant.travis at ieee.org> wrote:
>
> Guido seemed accepting to this idea about 9 months ago when I spoke to
> him.  I finally got around to writing up the PEP.   I'd really like to
> get this into Python 2.5 if possible.

-1

I've detailed my reasons here:
http://mail.python.org/pipermail/python-dev/2006-January/059851.html

In short, there are purely math usages that want to convert to int
while raising exceptions from inexact results.  The name __index__
seems inappropriate for this, and I feel it would be cleaner to fix
float.__int__ to raise exceptions from inexact results (after a
suitable warning period and with a trunc() function added to math.)

--
Adam Olsen, aka Rhamphoryncus