diff --git a/src/python/grpcio_tests/tests/_result.py b/src/python/grpcio_tests/tests/_result.py
index d7432a1fba94c..f3f8efe14fe1e 100644
--- a/src/python/grpcio_tests/tests/_result.py
+++ b/src/python/grpcio_tests/tests/_result.py
@@ -305,7 +305,11 @@ def startTest(self, test):
         """See unittest.TestResult.startTest."""
         super(TerminalResult, self).startTest(test)
         self.out.write(
-            _Colors.FAIL + "[{}]START         {}\n".format(datetime.datetime.now(), test.id()) + _Colors.END
+            _Colors.FAIL
+            + "[{}]START         {}\n".format(
+                datetime.datetime.now(), test.id()
+            )
+            + _Colors.END
         )
         self.out.flush()
 
@@ -319,7 +323,11 @@ def addError(self, test, err):
         """See unittest.TestResult.addError."""
         super(TerminalResult, self).addError(test, err)
         self.out.write(
-            _Colors.FAIL + "[{}]ERROR         {}\n".format(datetime.datetime.now(), test.id()) + _Colors.END
+            _Colors.FAIL
+            + "[{}]ERROR         {}\n".format(
+                datetime.datetime.now(), test.id()
+            )
+            + _Colors.END
         )
         self.out.flush()
 
@@ -327,7 +335,11 @@ def addFailure(self, test, err):
         """See unittest.TestResult.addFailure."""
         super(TerminalResult, self).addFailure(test, err)
         self.out.write(
-            _Colors.FAIL + "[{}]FAILURE       {}\n".format(datetime.datetime.now(), test.id()) + _Colors.END
+            _Colors.FAIL
+            + "[{}]FAILURE       {}\n".format(
+                datetime.datetime.now(), test.id()
+            )
+            + _Colors.END
         )
         self.out.flush()