Use Sikuli to run selemium script

OS: Win7 , python27, jython2.5.3b1,sikuli1.0rc3

I use java to run selenium-server.jar

I use selemium-ide to recorder script and save as python language for RC

ttt.py
###################################
from selenium import selenium
import unittest, time, re

class ttt(unittest.TestCase):
    def setUp(self):
        self.verificationErrors = []
        self.selenium = selenium("localhost", 4444, "*chrome", "http://www.google.com.tw/")
        self.selenium.start()

    def test_ttt(self):
        sel = self.selenium
        sel.open("/")
        sel.type("id=lst-ib", "1234")
        sel.click("name=btnK")
        try: self.failUnless(sel.is_text_present(u"123(1234)"))
        except AssertionError, e: self.verificationErrors.append(str(e))

        print("Pass")

    def tearDown(self):
        self.selenium.stop()
        self.assertEqual([], self.verificationErrors)

if __name__ == "__main__":
    unittest.main()
###################################

If use sikuli to run ttt.py, it's work fine.

I use other py to call ttt.py, it's error
other py file is use command: ttt.ttt(unittest.TestCase)

Error message:
TypeError: getattr():attribute name must be string

Command type error? how to call ttt.py ?