Make autopep8 happy

Author: lidizheng

tests/system/test_grpc_streams.py

@@ -79,7 +79,8 @@ def test_stream_stream_passing_dict(echo):
 
 @pytest.mark.asyncio
 async def test_async_unary_stream_reader(async_echo):
-    logging.debug('test_async_unary_stream_reader %s %s', threading.current_thread(), asyncio.get_event_loop())
+    logging.debug('test_async_unary_stream_reader %s %s',
+                  threading.current_thread(), asyncio.get_event_loop())
     content = 'The hail in Wales falls mainly on the snails.'
     call = await async_echo.expand({
         'content': content,
@@ -135,6 +136,7 @@ async def test_async_stream_unary_iterable(async_echo):
 @pytest.mark.asyncio
 async def test_async_stream_unary_async_generator(async_echo):
     logging.debug('test_async_stream_unary_async_generator')
+
     async def async_generator():
         yield showcase.EchoRequest(content="hello")
         yield showcase.EchoRequest(content="world!")
@@ -186,6 +188,7 @@ async def test_async_stream_stream_reader_writier(async_echo):
 @pytest.mark.asyncio
 async def test_async_stream_stream_async_generator(async_echo):
     logging.debug('test_async_stream_stream_async_generator')
+
     async def async_generator():
         yield showcase.EchoRequest(content="hello")
         yield showcase.EchoRequest(content="world!")