SF patch# 1766592 by Paul Colomiets.
Fix test_zipimport.
diff --git a/Lib/doctest.py b/Lib/doctest.py
index 3f139fc..bc30a1a 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -209,7 +209,7 @@
filename = _module_relative_path(package, filename)
if hasattr(package, '__loader__'):
if hasattr(package.__loader__, 'get_data'):
- return package.__loader__.get_data(filename), filename
+ return package.__loader__.get_data(filename).decode('utf-8'), filename
return open(filename, encoding="utf-8").read(), filename
def _indent(s, indent=4):