Here's an idea I've had. How about instead of this:

itertools.islice(iterable, 7, 20)

We'll just have:

itertools.islice(iterable)[7:20]


Advantages:
1. More familiar slicing syntax.
2. No need to awkwardly use None when you're interested in just specifying
the end of the slice without specifying the start, i.e. islic(x)[:10]
instead of islice(x, None, 10)
3. Doesn't require breaking backwards compatibility.


What do you think?
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