Question

Im trying to use python to define a character set then generate all the possible strings that are the in character set.

I was thinking of first setting the character set as a variable then using for loops to generate the possible strings like this:

charSet = [a-zA-Z0-9]
for a in charSet:
      print (a)
for b in charSet:
      print (b)

But i keep getting this error message
UnboundLocalError: local variable ‘a’ referenced before assignment

Any ideas anyone?

Answer 1

Once you get your charSet definition problem resolved, look at itertools.product:

from itertools import product
import string

charSet = string.ascii_letters + string.digits
for wordchars in product(charSet, repeat=4):
    print ''.join(wordchars)