diff --git a/Lib/threading.py b/Lib/threading.py
index 4ba7252..1ad5664 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -39,10 +39,10 @@
         def __init__(self, verbose=None):
             if verbose is None:
                 verbose = _VERBOSE
-            self.__verbose = verbose
+            self._verbose = verbose
 
         def _note(self, format, *args):
-            if self.__verbose:
+            if self._verbose:
                 format = format % args
                 format = "%s: %s\n" % (
                     currentThread().getName(), format)
@@ -80,28 +80,28 @@
 
     def __init__(self, verbose=None):
         _Verbose.__init__(self, verbose)
-        self.__block = _allocate_lock()
-        self.__owner = None
-        self.__count = 0
+        self._block = _allocate_lock()
+        self._owner = None
+        self._count = 0
 
     def __repr__(self):
-        owner = self.__owner
+        owner = self._owner
         return "<%s(%s, %d)>" % (
                 self.__class__.__name__,
                 owner and owner.getName(),
-                self.__count)
+                self._count)
 
     def acquire(self, blocking=1):
         me = currentThread()
-        if self.__owner is me:
-            self.__count = self.__count + 1
+        if self._owner is me:
+            self._count = self._count + 1
             if __debug__:
                 self._note("%s.acquire(%s): recursive success", self, blocking)
             return 1
-        rc = self.__block.acquire(blocking)
+        rc = self._block.acquire(blocking)
         if rc:
-            self.__owner = me
-            self.__count = 1
+            self._owner = me
+            self._count = 1
             if __debug__:
                 self._note("%s.acquire(%s): initial success", self, blocking)
         else:
@@ -112,12 +112,12 @@
     __enter__ = acquire
 
     def release(self):
-        if self.__owner is not currentThread():
+        if self._owner is not currentThread():
             raise RuntimeError("cannot release un-aquired lock")
-        self.__count = count = self.__count - 1
+        self._count = count = self._count - 1
         if not count:
-            self.__owner = None
-            self.__block.release()
+            self._owner = None
+            self._block.release()
             if __debug__:
                 self._note("%s.release(): final release", self)
         else:
@@ -130,23 +130,23 @@
     # Internal methods used by condition variables
 
     def _acquire_restore(self, state):
-        self.__block.acquire()
-        self.__count, self.__owner = state
+        self._block.acquire()
+        self._count, self._owner = state
         if __debug__:
             self._note("%s._acquire_restore()", self)
 
     def _release_save(self):
         if __debug__:
             self._note("%s._release_save()", self)
-        count = self.__count
-        self.__count = 0
-        owner = self.__owner
-        self.__owner = None
-        self.__block.release()
+        count = self._count
+        self._count = 0
+        owner = self._owner
+        self._owner = None
+        self._block.release()
         return (count, owner)
 
     def _is_owned(self):
-        return self.__owner is currentThread()
+        return self._owner is currentThread()
 
 
 def Condition(*args, **kwargs):
@@ -158,7 +158,7 @@
         _Verbose.__init__(self, verbose)
         if lock is None:
             lock = RLock()
-        self.__lock = lock
+        self._lock = lock
         # Export the lock's acquire() and release() methods
         self.acquire = lock.acquire
         self.release = lock.release
@@ -177,28 +177,28 @@
             self._is_owned = lock._is_owned
         except AttributeError:
             pass
-        self.__waiters = []
+        self._waiters = []
 
     def __enter__(self):
-        return self.__lock.__enter__()
+        return self._lock.__enter__()
 
     def __exit__(self, *args):
-        return self.__lock.__exit__(*args)
+        return self._lock.__exit__(*args)
 
     def __repr__(self):
-        return "<Condition(%s, %d)>" % (self.__lock, len(self.__waiters))
+        return "<Condition(%s, %d)>" % (self._lock, len(self._waiters))
 
     def _release_save(self):
-        self.__lock.release()           # No state to save
+        self._lock.release()           # No state to save
 
     def _acquire_restore(self, x):
-        self.__lock.acquire()           # Ignore saved state
+        self._lock.acquire()           # Ignore saved state
 
     def _is_owned(self):
         # Return True if lock is owned by currentThread.
         # This method is called only if __lock doesn't have _is_owned().
-        if self.__lock.acquire(0):
-            self.__lock.release()
+        if self._lock.acquire(0):
+            self._lock.release()
             return False
         else:
             return True
@@ -208,7 +208,7 @@
             raise RuntimeError("cannot wait on un-aquired lock")
         waiter = _allocate_lock()
         waiter.acquire()
-        self.__waiters.append(waiter)
+        self._waiters.append(waiter)
         saved_state = self._release_save()
         try:    # restore state no matter what (e.g., KeyboardInterrupt)
             if timeout is None:
@@ -236,7 +236,7 @@
                     if __debug__:
                         self._note("%s.wait(%s): timed out", self, timeout)
                     try:
-                        self.__waiters.remove(waiter)
+                        self._waiters.remove(waiter)
                     except ValueError:
                         pass
                 else:
@@ -248,7 +248,7 @@
     def notify(self, n=1):
         if not self._is_owned():
             raise RuntimeError("cannot notify on un-aquired lock")
-        __waiters = self.__waiters
+        __waiters = self._waiters
         waiters = __waiters[:n]
         if not waiters:
             if __debug__:
@@ -264,7 +264,7 @@
                 pass
 
     def notifyAll(self):
-        self.notify(len(self.__waiters))
+        self.notify(len(self._waiters))
 
 
 def Semaphore(*args, **kwargs):
@@ -278,38 +278,38 @@
         if value < 0:
             raise ValueError("semaphore initial value must be >= 0")
         _Verbose.__init__(self, verbose)
-        self.__cond = Condition(Lock())
-        self.__value = value
+        self._cond = Condition(Lock())
+        self._value = value
 
     def acquire(self, blocking=1):
         rc = False
-        self.__cond.acquire()
-        while self.__value == 0:
+        self._cond.acquire()
+        while self._value == 0:
             if not blocking:
                 break
             if __debug__:
                 self._note("%s.acquire(%s): blocked waiting, value=%s",
-                           self, blocking, self.__value)
-            self.__cond.wait()
+                           self, blocking, self._value)
+            self._cond.wait()
         else:
-            self.__value = self.__value - 1
+            self._value = self._value - 1
             if __debug__:
                 self._note("%s.acquire: success, value=%s",
-                           self, self.__value)
+                           self, self._value)
             rc = True
-        self.__cond.release()
+        self._cond.release()
         return rc
 
     __enter__ = acquire
 
     def release(self):
-        self.__cond.acquire()
-        self.__value = self.__value + 1
+        self._cond.acquire()
+        self._value = self._value + 1
         if __debug__:
             self._note("%s.release: success, value=%s",
-                       self, self.__value)
-        self.__cond.notify()
-        self.__cond.release()
+                       self, self._value)
+        self._cond.notify()
+        self._cond.release()
 
     def __exit__(self, t, v, tb):
         self.release()
@@ -325,7 +325,7 @@
         self._initial_value = value
 
     def release(self):
-        if self._Semaphore__value >= self._initial_value:
+        if self._value >= self._initial_value:
             raise ValueError, "Semaphore released too many times"
         return _Semaphore.release(self)
 
@@ -339,34 +339,34 @@
 
     def __init__(self, verbose=None):
         _Verbose.__init__(self, verbose)
-        self.__cond = Condition(Lock())
-        self.__flag = False
+        self._cond = Condition(Lock())
+        self._flag = False
 
     def isSet(self):
-        return self.__flag
+        return self._flag
 
     def set(self):
-        self.__cond.acquire()
+        self._cond.acquire()
         try:
-            self.__flag = True
-            self.__cond.notifyAll()
+            self._flag = True
+            self._cond.notifyAll()
         finally:
-            self.__cond.release()
+            self._cond.release()
 
     def clear(self):
-        self.__cond.acquire()
+        self._cond.acquire()
         try:
-            self.__flag = False
+            self._flag = False
         finally:
-            self.__cond.release()
+            self._cond.release()
 
     def wait(self, timeout=None):
-        self.__cond.acquire()
+        self._cond.acquire()
         try:
-            if not self.__flag:
-                self.__cond.wait(timeout)
+            if not self._flag:
+                self._cond.wait(timeout)
         finally:
-            self.__cond.release()
+            self._cond.release()
 
 # Helper to generate new thread names
 _counter = 0
@@ -398,53 +398,53 @@
         _Verbose.__init__(self, verbose)
         if kwargs is None:
             kwargs = {}
-        self.__target = target
-        self.__name = str(name or _newname())
-        self.__args = args
-        self.__kwargs = kwargs
-        self.__daemonic = self._set_daemon()
-        self.__started = False
-        self.__stopped = False
-        self.__block = Condition(Lock())
-        self.__initialized = True
+        self._target = target
+        self._name = str(name or _newname())
+        self._args = args
+        self._kwargs = kwargs
+        self._daemonic = self._set_daemon()
+        self._started = False
+        self._stopped = False
+        self._block = Condition(Lock())
+        self._initialized = True
         # sys.stderr is not stored in the class like
         # sys.exc_info since it can be changed between instances
-        self.__stderr = _sys.stderr
+        self._stderr = _sys.stderr
 
     def _set_daemon(self):
         # Overridden in _MainThread and _DummyThread
         return currentThread().isDaemon()
 
     def __repr__(self):
-        assert self.__initialized, "Thread.__init__() was not called"
+        assert self._initialized, "Thread.__init__() was not called"
         status = "initial"
-        if self.__started:
+        if self._started:
             status = "started"
-        if self.__stopped:
+        if self._stopped:
             status = "stopped"
-        if self.__daemonic:
+        if self._daemonic:
             status = status + " daemon"
-        return "<%s(%s, %s)>" % (self.__class__.__name__, self.__name, status)
+        return "<%s(%s, %s)>" % (self.__class__.__name__, self._name, status)
 
     def start(self):
-        if not self.__initialized:
+        if not self._initialized:
             raise RuntimeError("thread.__init__() not called")
-        if self.__started:
+        if self._started:
             raise RuntimeError("thread already started")
         if __debug__:
             self._note("%s.start(): starting thread", self)
         _active_limbo_lock.acquire()
         _limbo[self] = self
         _active_limbo_lock.release()
-        _start_new_thread(self.__bootstrap, ())
-        self.__started = True
+        _start_new_thread(self._bootstrap, ())
+        self._started = True
         _sleep(0.000001)    # 1 usec, to let the thread run (Solaris hack)
 
     def run(self):
-        if self.__target:
-            self.__target(*self.__args, **self.__kwargs)
+        if self._target:
+            self._target(*self._args, **self._kwargs)
 
-    def __bootstrap(self):
+    def _bootstrap(self):
         # Wrapper around the real bootstrap code that ignores
         # exceptions during interpreter cleanup.  Those typically
         # happen when a daemon thread wakes up at an unfortunate
@@ -458,15 +458,15 @@
         # reported.  Also, we only suppress them for daemonic threads;
         # if a non-daemonic encounters this, something else is wrong.
         try:
-            self.__bootstrap_inner()
+            self._bootstrap_inner()
         except:
-            if self.__daemonic and _sys is None:
+            if self._daemonic and _sys is None:
                 return
             raise
 
-    def __bootstrap_inner(self):
+    def _bootstrap_inner(self):
         try:
-            self.__started = True
+            self._started = True
             _active_limbo_lock.acquire()
             _active[_get_ident()] = self
             del _limbo[self]
@@ -490,7 +490,7 @@
                 if __debug__:
                     self._note("%s.__bootstrap(): unhandled exception", self)
                 # If sys.stderr is no more (most likely from interpreter
-                # shutdown) use self.__stderr.  Otherwise still use sys (as in
+                # shutdown) use self._stderr.  Otherwise still use sys (as in
                 # _sys) in case sys.stderr was redefined since the creation of
                 # self.
                 if _sys:
@@ -500,21 +500,21 @@
                     # Do the best job possible w/o a huge amt. of code to
                     # approximate a traceback (code ideas from
                     # Lib/traceback.py)
-                    exc_type, exc_value, exc_tb = self.__exc_info()
+                    exc_type, exc_value, exc_tb = self._exc_info()
                     try:
                         print((
                             "Exception in thread " + self.getName() +
-                            " (most likely raised during interpreter shutdown):"), file=self.__stderr)
+                            " (most likely raised during interpreter shutdown):"), file=self._stderr)
                         print((
-                            "Traceback (most recent call last):"), file=self.__stderr)
+                            "Traceback (most recent call last):"), file=self._stderr)
                         while exc_tb:
                             print((
                                 '  File "%s", line %s, in %s' %
                                 (exc_tb.tb_frame.f_code.co_filename,
                                     exc_tb.tb_lineno,
-                                    exc_tb.tb_frame.f_code.co_name)), file=self.__stderr)
+                                    exc_tb.tb_frame.f_code.co_name)), file=self._stderr)
                             exc_tb = exc_tb.tb_next
-                        print(("%s: %s" % (exc_type, exc_value)), file=self.__stderr)
+                        print(("%s: %s" % (exc_type, exc_value)), file=self._stderr)
                     # Make sure that exc_tb gets deleted since it is a memory
                     # hog; deleting everything else is just for thoroughness
                     finally:
@@ -523,19 +523,19 @@
                 if __debug__:
                     self._note("%s.__bootstrap(): normal return", self)
         finally:
-            self.__stop()
+            self._stop()
             try:
-                self.__delete()
+                self._delete()
             except:
                 pass
 
-    def __stop(self):
-        self.__block.acquire()
-        self.__stopped = True
-        self.__block.notifyAll()
-        self.__block.release()
+    def _stop(self):
+        self._block.acquire()
+        self._stopped = True
+        self._block.notifyAll()
+        self._block.release()
 
-    def __delete(self):
+    def _delete(self):
         "Remove current thread from the dict of currently running threads."
 
         # Notes about running with dummy_thread:
@@ -570,60 +570,60 @@
             _active_limbo_lock.release()
 
     def join(self, timeout=None):
-        if not self.__initialized:
+        if not self._initialized:
             raise RuntimeError("Thread.__init__() not called")
-        if not self.__started:
+        if not self._started:
             raise RuntimeError("cannot join thread before it is started")
         if self is currentThread():
             raise RuntimeError("cannot join current thread")
 
         if __debug__:
-            if not self.__stopped:
+            if not self._stopped:
                 self._note("%s.join(): waiting until thread stops", self)
-        self.__block.acquire()
+        self._block.acquire()
         try:
             if timeout is None:
-                while not self.__stopped:
-                    self.__block.wait()
+                while not self._stopped:
+                    self._block.wait()
                 if __debug__:
                     self._note("%s.join(): thread stopped", self)
             else:
                 deadline = _time() + timeout
-                while not self.__stopped:
+                while not self._stopped:
                     delay = deadline - _time()
                     if delay <= 0:
                         if __debug__:
                             self._note("%s.join(): timed out", self)
                         break
-                    self.__block.wait(delay)
+                    self._block.wait(delay)
                 else:
                     if __debug__:
                         self._note("%s.join(): thread stopped", self)
         finally:
-            self.__block.release()
+            self._block.release()
 
     def getName(self):
-        assert self.__initialized, "Thread.__init__() not called"
-        return self.__name
+        assert self._initialized, "Thread.__init__() not called"
+        return self._name
 
     def setName(self, name):
-        assert self.__initialized, "Thread.__init__() not called"
-        self.__name = str(name)
+        assert self._initialized, "Thread.__init__() not called"
+        self._name = str(name)
 
     def isAlive(self):
-        assert self.__initialized, "Thread.__init__() not called"
-        return self.__started and not self.__stopped
+        assert self._initialized, "Thread.__init__() not called"
+        return self._started and not self._stopped
 
     def isDaemon(self):
-        assert self.__initialized, "Thread.__init__() not called"
-        return self.__daemonic
+        assert self._initialized, "Thread.__init__() not called"
+        return self._daemonic
 
     def setDaemon(self, daemonic):
-        if not self.__initialized:
+        if not self._initialized:
             raise RuntimeError("Thread.__init__() not called")
-        if self.__started:
+        if self._started:
             raise RuntimeError("cannot set daemon status of active thread");
-        self.__daemonic = daemonic
+        self._daemonic = daemonic
 
 # The timer class was contributed by Itamar Shtull-Trauring
 
@@ -663,7 +663,7 @@
 
     def __init__(self):
         Thread.__init__(self, name="MainThread")
-        self._Thread__started = True
+        self._started = True
         _active_limbo_lock.acquire()
         _active[_get_ident()] = self
         _active_limbo_lock.release()
@@ -672,7 +672,7 @@
         return False
 
     def _exitfunc(self):
-        self._Thread__stop()
+        self._stop()
         t = _pickSomeNonDaemonThread()
         if t:
             if __debug__:
@@ -682,7 +682,7 @@
             t = _pickSomeNonDaemonThread()
         if __debug__:
             self._note("%s: exiting", self)
-        self._Thread__delete()
+        self._delete()
 
 def _pickSomeNonDaemonThread():
     for t in enumerate():
@@ -707,9 +707,9 @@
         # Thread.__block consumes an OS-level locking primitive, which
         # can never be used by a _DummyThread.  Since a _DummyThread
         # instance is immortal, that's bad, so release this resource.
-        del self._Thread__block
+        del self._block
 
-        self._Thread__started = True
+        self._started = True
         _active_limbo_lock.acquire()
         _active[_get_ident()] = self
         _active_limbo_lock.release()