random password generator using paste

genpass.py

import string
from random import choice
from webob import Request, Response

def GenPass(length):
   return ''.join([choice(string.letters + string.digits) for i in range(int(length))])

def GenPassWeb(environ, start_response):
    r = Request(environ)
    l = r.GET['length']
    response = Response(content_type='text/plain', body=GenPass(l))
    return response(environ, start_response)

def main():
    from paste.httpserver import serve
    serve (GenPassWeb)

if __name__ == "__main__":
    main()