Add test case for #43581.
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index b98c648..ae2a1c8 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -261,6 +261,11 @@
self.assert_(vi[3] in ("alpha", "beta", "candidate", "final"))
self.assert_(isinstance(vi[4], int))
+ def test_43581(self):
+ # Can't use sys.stdout, as this is a cStringIO object when
+ # the test runs under regrtest.
+ self.assert_(sys.__stdout__.encoding == sys.__stderr__.encoding)
+
def test_main():
test.test_support.run_unittest(SysModuleTest)