Hello, I am trying to figure out how I can use the field calculator with python to calculate sequential letters. For example, I would like "A,B,C,D....Z, AA,AB, AC...". I did find a code that works just fine in a regular python environment but I am having a hard time incorporating it on the field calculator. excel - How to make a continuous alphabetic list python (from a-z then from aa, ab, ac etc) - Stack Overflow I tried using this as the code block: """ from string import ascii_lowercase import itertools def iter_all_strings(): size = 1 while True: for s in itertools.product(ascii_lowercase, repeat=size): yield "".join(s) size +=1 """ and "iter_all_strings()" as the expression in the field calculator but it just gives me null values. Any help would be much appreciated, thank you.
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