use assertRaisesRegexp instead of assertRaisesRegex

Author: rikterbeek

test/ThirdPartyPayoutTest.py

@@ -159,7 +159,7 @@ def test_store_detail_and_submit_missing_reference(self):
         resp = 'test/mocks/payout/submit-missing-reference.json'
         self.ady.client = self.test.create_client_from_file(422, request, resp)
 
-        self.assertRaisesRegex(
+        self.assertRaisesRegexp(
             Adyen.AdyenAPICommunicationError,
             "Unexpected error",
             self.ady.payout.store_detail_and_submit,