diff -r 871003356943 Lib/test/test_time_strptime.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Lib/test/test_time_strptime.py	Tue Oct 05 21:14:05 2010 +0900
@@ -0,0 +1,29 @@
+from test import support
+import time
+import unittest
+import threading
+
+class StressTimeStrptime(threading.Thread):
+    def run(self):
+        self.error_raised=False
+        try:
+            for m in range(1, 13):
+                for d in range(1,29):
+                    time.strptime("2010%02d%02d"%(m,d),"%Y%m%d")
+        except AttributeError:
+            self.error_raised=True
+
+class TestStrptimeAttributeInThread(unittest.TestCase):
+    def test_run_in_thread(self):
+        threads=[StressTimeStrptime() for _ in range(10)]
+        for t in threads:
+            t.start()
+        for t in threads:
+            t.join()
+            self.assertFalse(t.error_raised, 'should not raise AttributeError for strptime')
+
+def test_main():
+    support.run_unittest(TestStrptimeAttributeInThread)
+
+if __name__ == "__main__":
+    test_main()