Are permutations used in password cracking software?

Answer 1

I haven't really tried that out yet but yeah I think they can be especially since python does offer a whole variety of data types most useful lists n dictionaries can be used or try this out http://goo.gl/YbV4A2
if u were asking if we can do cracking or brute forcing or penetration testing and stuff like that in python then I'd say yes there's extensive libraries available u can check those out.