This reverts the following commit:
https://github.com/datadriventests/ddt/pull/112/commits/2d0f8a76dd27924830ebf3b708324924fb384c06

--- ddt-1.7.2/test/test_async.py.orig
+++ ddt-1.7.2/test/test_async.py
@@ -1,11 +1,11 @@
-import aiounittest
+import unittest
 
 from ddt import ddt, data
 from test.mycode import larger_than_two
 
 
 @ddt
-class TestAsync(aiounittest.AsyncTestCase):
+class TestAsync(unittest.IsolatedAsyncioTestCase):
     @data(3, 4, 12, 23)
     async def test_larger_than_two(self, value):
         self.assertTrue(larger_than_two(value))
--- ddt-1.7.2/tox.ini.orig
+++ ddt-1.7.2/tox.ini
@@ -6,7 +6,6 @@
     pytest
     pytest-cov
     coverage
-    aiounittest
     flake8
     six>=1.4.0
     PyYAML