check the possible combinations of passwords

posscombs.py

import itertools
import paramiko

def main():
  regex = raw_input("Please enter what combination of characters to use: \nexample: abcdefghijklmnopqrstuvwxyz123 \n ")
  length = raw_input("Okay now enter the length to check for: \n example: abcdefghijklmnopqrstuvwxyz with a length of 4 has 358,800 possible combinations \n so you would type '4' in this case \n")
  go(str(regex), int(length))

def go(regex, length):
  am = 0
  res = itertools.permutations(regex,length)
  for i in res:
    print ''.join(i)
    am+=1
    print "amount: " + str(am)
  
if __name__ == "__main__":
    main()