Index: Lib/threading.py
===================================================================
--- Lib/threading.py	(revision 88138)
+++ Lib/threading.py	(working copy)
@@ -350,14 +350,15 @@
 
     __enter__ = acquire
 
-    def release(self):
+    def release(self, n=1):
         self._cond.acquire()
-        self._value = self._value + 1
+        self._value = self._value + n
         if __debug__:
-            self._note("%s.release: success, value=%s",
-                       self, self._value)
-        self._cond.notify()
-        self._cond.release()
+            self._note("%s.release: success, value=%s, times=%d",
+                       self, self._value, n)
+		for i in range(n):
+			self._cond.notify()
+			self._cond.release()
 
     def __exit__(self, t, v, tb):
         self.release()