site.py is needed to set up paths
diff --git a/Lib/test/test_multiprocessing.py b/Lib/test/test_multiprocessing.py
index 8091a9f..bdf4e62 100644
--- a/Lib/test/test_multiprocessing.py
+++ b/Lib/test/test_multiprocessing.py
@@ -2427,7 +2427,7 @@
prog = ('from test.test_multiprocessing import TestFlags; ' +
'TestFlags.run_in_child()')
data = subprocess.check_output(
- [sys.executable, '-E', '-S', '-O', '-c', prog])
+ [sys.executable, '-E', '-B', '-O', '-c', prog])
child_flags, grandchild_flags = json.loads(data.decode('ascii'))
self.assertEqual(child_flags, grandchild_flags)
#