1 files changed, 53 insertions, 54 deletions
diff --git a/src/python/grpcio_tests/tests/qps/client_runner.py b/src/python/grpcio_tests/tests/qps/client_runner.py
index 1fd58687ad..037092313c 100644
--- a/src/python/grpcio_tests/tests/qps/client_runner.py
+++ b/src/python/grpcio_tests/tests/qps/client_runner.py
@@ -26,7 +26,6 @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
 """Defines behavior for WHEN clients send requests.
 
 Each client exposes a non-blocking send_request() method that the
@@ -39,68 +38,68 @@ import time
 
 
 class ClientRunner:
-  """Abstract interface for sending requests from clients."""
+    """Abstract interface for sending requests from clients."""
 
-  __metaclass__ = abc.ABCMeta
+    __metaclass__ = abc.ABCMeta
 
-  def __init__(self, client):
-    self._client = client
+    def __init__(self, client):
+        self._client = client
 
-  @abc.abstractmethod
-  def start(self):
-    raise NotImplementedError()
+    @abc.abstractmethod
+    def start(self):
+        raise NotImplementedError()
 
-  @abc.abstractmethod
-  def stop(self):
-    raise NotImplementedError()
+    @abc.abstractmethod
+    def stop(self):
+        raise NotImplementedError()
 
 
 class OpenLoopClientRunner(ClientRunner):
 
-  def __init__(self, client, interval_generator):
-    super(OpenLoopClientRunner, self).__init__(client)
-    self._is_running = False
-    self._interval_generator = interval_generator
-    self._dispatch_thread = threading.Thread(
-        target=self._dispatch_requests, args=())
-
-  def start(self):
-    self._is_running = True
-    self._client.start()
-    self._dispatch_thread.start()
-   
-  def stop(self):
-    self._is_running = False
-    self._client.stop()
-    self._dispatch_thread.join()
-    self._client = None
-
-  def _dispatch_requests(self):
-    while self._is_running:
-      self._client.send_request()
-      time.sleep(next(self._interval_generator))
+    def __init__(self, client, interval_generator):
+        super(OpenLoopClientRunner, self).__init__(client)
+        self._is_running = False
+        self._interval_generator = interval_generator
+        self._dispatch_thread = threading.Thread(
+            target=self._dispatch_requests, args=())
+
+    def start(self):
+        self._is_running = True
+        self._client.start()
+        self._dispatch_thread.start()
+
+    def stop(self):
+        self._is_running = False
+        self._client.stop()
+        self._dispatch_thread.join()
+        self._client = None
+
+    def _dispatch_requests(self):
+        while self._is_running:
+            self._client.send_request()
+            time.sleep(next(self._interval_generator))
 
 
 class ClosedLoopClientRunner(ClientRunner):
 
-  def __init__(self, client, request_count):
-    super(ClosedLoopClientRunner, self).__init__(client)
-    self._is_running = False
-    self._request_count = request_count
-    # Send a new request on each response for closed loop
-    self._client.add_response_callback(self._send_request)
-
-  def start(self):
-    self._is_running = True
-    self._client.start()
-    for _ in xrange(self._request_count):
-      self._client.send_request()
-
-  def stop(self):
-    self._is_running = False
-    self._client.stop()
-    self._client = None
-
-  def _send_request(self, client, response_time):
-    if self._is_running:
-      client.send_request()
+    def __init__(self, client, request_count):
+        super(ClosedLoopClientRunner, self).__init__(client)
+        self._is_running = False
+        self._request_count = request_count
+        # Send a new request on each response for closed loop
+        self._client.add_response_callback(self._send_request)
+
+    def start(self):
+        self._is_running = True
+        self._client.start()
+        for _ in xrange(self._request_count):
+            self._client.send_request()
+
+    def stop(self):
+        self._is_running = False
+        self._client.stop()
+        self._client = None
+
+    def _send_request(self, client, response_time):
+        if self._is_running:
+            client.send_request()