Iterate over a python sequence in multiples of n?

Question

How do I process the elements of a sequence in batches, idiomatically?

For example, with the sequence \"abcdef\" and a batch size of 2, I would like to do something

Answer 1

but the more general way would be (inspired by this answer):

for i in zip(*(seq[i::size] for i in range(size))):
    print(i)                            # tuple of individual values