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.
x(1::-1)
The biggest problem with your proposal is that generators don't remember
what they have already yielded, so
x(:) != x(:) # first time gets everything, second time gets nothing
~Ethan~
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