Parameterization with sikuli

>how to use parametrization if I want to parametrize username & password for the below script:
> Moto is to run below script n times with n number of users.
>please help

import unittest
import HTMLTestRunner
class TestA(unittest.TestCase):
    def setUp(self):
        openApp("C:\\Program Files\\Microsoft Office\\Office14\\WINWORD.EXE")
        while not exists("Pr00fGuru-1.png"):
            sleep(5)
        click("Pr00fGuru.png")
        click("Starthacking.png")
        while not exists("SignInEmailI.png"):
            sleep(5)
        click("EmailID.png")
        type("<email address hidden>\t")
        type("testing")
        click("1342006158928.png")