test_contextlib wasn't actually being run by regrtest.py. Or more precisely,
it was being run, but no tests were actually executed!
diff --git a/Lib/test/test_contextlib.py b/Lib/test/test_contextlib.py
index cd8895e..7d601fa 100644
--- a/Lib/test/test_contextlib.py
+++ b/Lib/test/test_contextlib.py
@@ -2,12 +2,14 @@
from __future__ import with_statement
+import sys
import os
import decimal
import tempfile
import unittest
import threading
from contextlib import * # Tests __all__
+from test.test_support import run_suite
class ContextManagerTestCase(unittest.TestCase):
@@ -327,5 +329,11 @@
self.fail("Didn't raise ZeroDivisionError")
+# This is needed to make the test actually run under regrtest.py!
+def test_main():
+ run_suite(
+ unittest.defaultTestLoader.loadTestsFromModule(sys.modules[__name__])
+ )
+
if __name__ == "__main__":
- unittest.main()
+ test_main()