[Python-Dev] Python-Dev Digest, Vol 104, Issue 79

[Peter Harris]

>
> On 03/21/2012 07:39 PM, Huan Do wrote:

> > *Hi,

> >

> > I am a graduating Berkeley student that loves python and would like to

> > propose an enhancement to python. My proposal introduces a concept of

> > slicing generator. For instance, if one does x[:] it returns a list

> > which is a copy of x. Sometimes programmers would want to iterate over a

> > slice of x, but they do not like the overhead of constructing another

> > list. Instead we can create a similar operator that returns a generator.

> > My proposed syntax is x(:). The programmers are of course able to set
> lower, upper, and step size like the following.

-1 on the syntax

And have you looked at itertools.islice ?
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