1 files changed, 2 insertions, 2 deletions
diff --git a/tests/wpt/web-platform-tests/tools/pywebsocket/mod_pywebsocket/util.py b/tests/wpt/web-platform-tests/tools/pywebsocket/mod_pywebsocket/util.py
index 268d99e671d..6c8284cd074 100644
--- a/tests/wpt/web-platform-tests/tools/pywebsocket/mod_pywebsocket/util.py
+++ b/tests/wpt/web-platform-tests/tools/pywebsocket/mod_pywebsocket/util.py
@@ -47,7 +47,7 @@ except ImportError:
     md5_hash = md5.md5
     sha1_hash = sha.sha
 
-import StringIO
+from six.moves import StringIO
 import logging
 import os
 import re
@@ -68,7 +68,7 @@ def get_stack_trace():
     TODO: Remove this when we only support Python 2.4 and above.
           Use traceback.format_exc instead.
     """
-    out = StringIO.StringIO()
+    out = StringIO()
     traceback.print_exc(file=out)
     return out.getvalue()