code: def generate_random_string(number_of_random_chars=8, character_set=string.ascii_letters):
      
      return u('').join(random.choice(character_set)
                        for _ in range(number_of_random_chars))
docs: Generate a series of random characters.
  
      Kwargs:
          number_of_random_chars (int) : Number of characters long
          character_set (str): Specify a character set.  Default is ASCII