Reduce maintenance burden

src/python/grpcio_status/grpc_status/rpc_status.py

@@ -79,15 +79,11 @@ def to_status(status):
                                        status.SerializeToString()),))
 
 
+__all__ = [
+    'from_call',
+    'to_status',
+]
+
 if sys.version_info[0] >= 3 and sys.version_info[1] >= 6:
     from . import _async as aio
-    __all__ = [
-        'from_call',
-        'to_status',
-        'aio',
-    ]
-else:
-    __all__ = [
-        'from_call',
-        'to_status',
-    ]
+    __all__.append('aio')

src/python/grpcio_tests/tests_aio/status/grpc_status_test.py

@@ -144,8 +144,8 @@ class StatusTest(AioTestBase):
         self.assertEqual(status.code, code_pb2.Code.Value('INTERNAL'))
 
         # Check if the underlying proto message is intact
-        self.assertEqual(
-            status.details[0].Is(error_details_pb2.DebugInfo.DESCRIPTOR), True)
+        self.assertTrue(status.details[0].Is(
+            error_details_pb2.DebugInfo.DESCRIPTOR))
         info = error_details_pb2.DebugInfo()
         status.details[0].Unpack(info)
         self.assertIn('_error_details_unary_unary', info.stack_entries[-1])