How to make a continuous alphabetic list python (from a-z then from aa, ab, ac etc)

Question

I would like to make a alphabetical list for an application similar to an excel worksheet.

A user would input number of cells and I would like to generate list. For

Answer 1

Following @Kevin 's answer :

from string import ascii_lowercase
import itertools

# define the generator itself
def iter_all_strings():
    size = 1
    while True:
        for s in itertools.product(ascii_lowercase, repeat=size):
            yield "".join(s)
        size +=1

The code below enables one to generate strings, that can be used to generate unique labels for example.

# define the generator handler
gen = iter_all_strings()
def label_gen():
    for s in gen:
        return s

# call it whenever needed
print label_gen()
print label_gen()
print label_gen()