class UITest(LiveServerTestCase):

    def setUp(self):
        self.selenium = {'chrome': webdriver.Chrome(), 'firefox': webdriver
            .Firefox()}

def tearDown(self):
    for browser in self.selenium:
        self.selenium[browser].quit()
testdata = [('chrome',), ('firefox',)]

@parameterized.expand(testdata)
def test_something(self, browser):
    pass
How do I set up a Selenium Grid Python test case to test across multiple machines?