Merge from 3.1: Issue #13703: add a way to randomize the hash values of basic types (str, bytes, datetime)
in order to make algorithmic complexity attacks on (e.g.) web apps much more complicated.
The environment variable PYTHONHASHSEED and the new command line flag -R control this
behavior.
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index 5d3404f..3268b1a 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -503,7 +503,7 @@
attrs = ("debug", "division_warning",
"inspect", "interactive", "optimize", "dont_write_bytecode",
"no_user_site", "no_site", "ignore_environment", "verbose",
- "bytes_warning", "quiet")
+ "bytes_warning", "quiet", "hash_randomization")
for attr in attrs:
self.assertTrue(hasattr(sys.flags, attr), attr)
self.assertEqual(type(getattr(sys.flags, attr)), int, attr)