Make your own cipher and use it to generate your custom password.

mycip.py

#!/usr/bin/env python
# encoding: utf-8

"""
Make your own cipher and use it to
generate your custom password.

1. Think of a phrase that you love.
2. Encode it with your custom cipher.
3. Use it as your password.

Should you decide to use your own cipher, then 
think of a suitable set of characters to 
substitute. The following is just an example.
"""
import string

"""
# Your custom cipher
`user` is standard character set.
`subs` is character substitution set for `user`.
"""

user = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijkl\
mnopqrstuvwxyz"
# Start editing.
# Remember to use your own custom substitution below.
subs = "fghijvwxyzabcdekVWXYZAmnopqrstuBCDEKLMN\
OPQRSTUlFGHIJ"
# End of editing.

def main():
	print 
	print "Remember to salt your familiar"
	print "word/phrase. (Salting is introducing"
	print "a combination of random special"
	print "characters and numerals in your"
	print "familiar phrase that you plan to"
	print "encode.)"
	print
	usertxt = raw_input("Text to be encoded: ")
	ciptrans = string.maketrans(user, subs)
	p = usertxt.translate(ciptrans)
	print "Plain text   : ", usertxt
	print "Ciphered text: ", p
	pass

if __name__ == '__main__':
	main()