Generate all base 26 triplets in the fastest way

Question

I need to create a list of triplets containing only uppercase English letters:

["AAA","AAB","AAC", ..., 'ZZZ'] 

What is the fastest way to do this in python?

Answer 1

 >>> from itertools import product >>> from string import ascii_uppercase >>> triplets = map(''.join, product(ascii_uppercase, repeat=3)) >>> triplets[4] 'AAE'