One Time Pad - Encryption

#
# -*- coding: utf-8 -*-
#
#  One Time Pad - Encryption
#
#  Copyright 2014 [email protected]
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
#  MA 02110-1301, USA.
#
#
from random import randint
message = list(raw_input("message---> ").lower())
alphabet = list("abcdefghijklmnopqrstuvqxyz")
keylist = []
cy = []
for i in message:
    if i in alphabet:
        i = alphabet.index(i)
        key = randint(1,26)
        keylist.append(key)
        i = (i + key)%26
        cy.append(alphabet[i])
    else:
        cy.append(i)

cy = ''.join(cy)

print "Here is your Key-List---> ",keylist
print "Here is your One-Time Pad Cypher---> ", cy