Index: tools/telemetry/telemetry/page/csv_page_measurement_results.py |
diff --git a/tools/telemetry/telemetry/page/csv_page_measurement_results.py b/tools/telemetry/telemetry/page/csv_page_measurement_results.py |
index bd2e8d291193ee2e98f4006c6e610f681615c82b..2440dd86e736038470694a948fb22cde64b549d5 100644 |
--- a/tools/telemetry/telemetry/page/csv_page_measurement_results.py |
+++ b/tools/telemetry/telemetry/page/csv_page_measurement_results.py |
@@ -7,9 +7,10 @@ from telemetry.page import page_measurement_results |
class CsvPageMeasurementResults( |
page_measurement_results.PageMeasurementResults): |
- def __init__(self, output_stream, output_after_every_page): |
+ def __init__(self, output_stream=None, output_after_every_page=None): |
super(CsvPageMeasurementResults, self).__init__() |
- self._results_writer = csv.writer(output_stream) |
+ if output_stream: |
+ self._results_writer = csv.writer(output_stream) |
self._did_output_header = False |
self._header_names_written_to_writer = None |
self._output_after_every_page = output_after_every_page |