[Python-3000] Making more effective use of slice objects in Py3k

[Greg Ewing]

Guido van Rossum wrote:

> Having views in a library module alleviates many of my objections.
> While I still worry that it will be overused, deque doesn't seem to be
> overused, so perhaps I should relax.

Another thought is that there will already be ways
in which Py3k views could lead to inefficiencies if
they're not used carefully. A keys() view of a dict,
for example, will keep the values of the dict alive
as well as the keys, unlike the existing keys()
method.

--
Greg