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

Mon Feb 13 21:28:37 CET 2006

Guido:
> I don't like __true_int__ very much. Personally,
> I'm fine with calling it __index__

index is OK, but is there a reason __integer__ would be
rejected?
__int__ roughly follows the low-level C implementation,
and may do odd things on unusual input.
__integer__ properly creates a conceptual integer, so
it won't lose or corrupt information (unless the class
writer does this intentionally).
-jJ