Im writing test scripts in python for selenium web testing.

How do I pass parameters through a python function to call in a later function? I first have a login test function. Then I have a new user registration function. Im trying to pass the Username and Password I use in the registration function to the testLogin function that I call inside the testRegister function.

This is my python code:

userName = "admin"
password = "admin"

#pass username and password variables to this function
def testLogin(userName,password):
  browser = webdriver.Firefox()
  browser.get("http://url/login")

  element = browser.find_element_by_name("userName")
  element.send_keys(userName)

  element = browser.find_element_by_name("userPassword")
  element.send_keys(password)

  element.send_keys(Keys.RETURN)

  browser.close()

# test registration
def testRegister():
  browser = webdriver.Firefox()
  browser.get("http://url/register")

  #new username variable
  newUserName = "test"
  element = browser.find_element_by_name("regUser")
  element.send_keys(newUserName)

  #new password variable
  newUserPassword = "test"
  element = browser.find_element_by_name("regPassword")
  element.send_keys(newUserPassword)

  #
  #now test if user is registered, I want to call testLogin with the test user name and pw.
  testLogin(newUserName,newUserPassword)

  browser.close()