enumerate, zip, range

Three iteration patterns you'll reach for every day.

enumerate(seq, start=0)

Gives you (index, value) tuples. Stop writing for i in range(len(x)).

zip(a, b)

Walks multiple sequences in parallel. Stops at the shortest one.

range(start, stop, step)

Lazy sequence of integers. Convert with list(range(...)) if you need a list.

Try it

1. Use zip to build a dict from names and years.
2. Print every other item of a list using enumerate + a check on the index.