def setUp(self):
        self.username = "tester"
        self.email = "test@tester.com"
        self.password = "test"
        self.auth = "Basic %s" % base64.b64encode((self.username, self.password) % "%s:%s")
        form = {'username':self.username, 'email': self.email,'password':self.password,'password2':self.password}
        self.client.post(reverse(register),form, Authorization=self.auth, X_Experience_API_Version=settings.XAPI_VERSION)
dataset/ETHPy150Open adlnet/ADL_LRS/lrs/tests/test_Activity.py/ActivityTests.setUp/swapped operands of `%`