Iteration over list slices

Question

I want an algorithm to iterate over list slices. Slices size is set outside the function and can differ.

In my mind it is something like:

for list_of_x         


        

Answer 1

If you want to be able to consume any iterable you can use these functions:

from itertools import chain, islice

def ichunked(seq, chunksize):
    """Yields items from an iterator in iterable chunks."""
    it = iter(seq)
    while True:
        yield chain([it.next()], islice(it, chunksize-1))

def chunked(seq, chunksize):
    """Yields items from an iterator in list chunks."""
    for chunk in ichunked(seq, chunksize):
        yield list(chunk)