How can I generate a wordlist like Crunch using Python?

Question

I would like to generate a wordlist like the ones generated by the Linux app "Crunch" where all the characters in the wordlist are from a character set (eg. "[a-zA-Z0-9]) and ranges from one character word up to n (n is user's input).

Example:
$ python3 words.py "abc" 3

# words.py is the script, "abc" is the character set, 3 is max character for each word (i.e. n)

Expected Output:
a
aa
ab
ac
aaa
aab
aac
aba
abb
abc
[...]
b
ba
bb
bc
baa
bab
bac
bba
bbb
[...]

And so on up to 'ccc'....

Answer 1

import itertools
print(list(map("".join, itertools.product('abc', repeat=3))))

Answer 2

Thanks. This will do fine Marking it as best answer. One more thing... any idea how to implement this in C?

Answer 3

Sorry man, got 0 experience in C but surely if you search on Google you'll find an answer.