Error in Selenium Python Script

Hey There. I am trying to get the hang of both Python and Selenium RC and am having some difficulty getting the following sample Selenium Python Script to parse. I have resolved all of the following code's errors besides one:

from selenium import selenium
import unittest

class SignUpTask(unittest.TestCase):
    """ The following needs to have the issues corrected to make 
        it run. When the run is completed the answer for question 
        2 will be shown"""

def setUp(self):
    self.selenium = selenium("localhost", 4444, "*firefox",
            "http://www.google.com/")
    self.selenium.start()


def test_that_will_print_out_a_url_as_answer_for_task(sel):
    self.selenium.open("/")
    self.selenium.click("link=Web QA")
    self.selenium.wait_for_page_to_load("30000")
    self.selenium.click("link=Get Involved")
    self.selenium.wait_for_page_to_load("30000")
    url = self.selenium.get_attribute("//ol/li[5]/a@href")
    print """The Url below needs to be entered as the answer 
             for Question 2) in the signup task"""
    print "URL is: %s" % url

def tearDown(self):
    self.selenium.stop()

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

After running the above script via Selenium RC, I get the following error:

ERROR: test_that_will_print_out_a_url_as_answer_for_task (main.SignUpTask) Traceback (most recent call last): File "/Users/eanderson/Desktop/TestFiles/Selenium1.py", line 16, in test_that_will_print_out_a_url_as_answer_for_task self.selenium.open("/") NameError: global name 'self' is not defined

Ran 1 test in 24.577s

failed (errors=1)

Does anyone out there understand why I am getting the "NameError: global name 'self' is not defined" error on line 16 and could help me alleviate this error so my script can parse without error.

Thanks!

.erik