diff -r 0238cc842805 Lib/sched.py
--- a/Lib/sched.py	Thu Dec 06 17:49:58 2012 -0500
+++ b/Lib/sched.py	Sat Dec 08 11:26:59 2012 +0200
@@ -67,10 +67,10 @@
         if necessary.
 
         """
+        event = Event(time, priority, action, argument, kwargs)
         with self._lock:
-            event = Event(time, priority, action, argument, kwargs)
             heapq.heappush(self._queue, event)
-            return event # The ID
+        return event # The ID
 
     def enter(self, delay, priority, action, argument=[], kwargs={}):
         """A variant that specifies the time as a relative time.
@@ -78,9 +78,8 @@
         This is actually the more commonly used interface.
 
         """
-        with self._lock:
-            time = self.timefunc() + delay
-            return self.enterabs(time, priority, action, argument, kwargs)
+        time = self.timefunc() + delay
+        return self.enterabs(time, priority, action, argument, kwargs)
 
     def cancel(self, event):
         """Remove an event from the queue.
@@ -159,4 +158,4 @@
         # the actual order they would be retrieved.
         with self._lock:
             events = self._queue[:]
-            return map(heapq.heappop, [events]*len(events))
+        return map(heapq.heappop, [events]*len(events))