128 – pairwise generalisation

itertools.pairwise accepts an iterable and produces overlapping pairs of consecutive elements:

from itertools import pairwise

my_list = [42, 73, 16, 0, 10]
for a, b in pairwise(my_list):
    print(a, b)

"""
Output:
42 73
73 16
16 0
0 10
"""

If you need a similar behaviour but with tuples of an arbitrary size, you can implement that as a generator with collections.deque and itertools.islice:

from collections import deque
from itertools import islice

def n_tuples(data, n):
    """Produces overlapping tuples of size `n`."""
    data = iter(data)
    window = deque(islice(data, n - 1), maxlen=n)
    for value in data:
        window.append(value)
        yield tuple(window)