Fix pep257 error

tzonghao · tzonghao · commit b11974ed8f5d · 2017-12-11T20:11:26.000-05:00
diff --git a/influxdb/tests/dataframe_client_test.py b/influxdb/tests/dataframe_client_test.py
@@ -60,7 +60,7 @@ def test_write_points_from_dataframe(self):
             self.assertEqual(m.last_request.body, expected)
 
     def test_dataframe_write_points_with_whitespace_measurement(self):
-        """write_points should escape white space in measurements"""
+        """write_points should escape white space in measurements."""
         now = pd.Timestamp('1970-01-01 00:00+00:00')
         dataframe = pd.DataFrame(data=[["1", 1, 1.0], ["2", 2, 2.0]],
                                  index=[now, now + timedelta(hours=1)],
