def qsize(self):
        """Return the approximate size of the queue (not reliable!)."""
        self.mutex.acquire()
        n = self._qsize()
        self.mutex.release()
        return n
def qsize(self):
        """Return the approximate size of the queue (not reliable!)."""
        self.mutex.acquire()
        n = self._qsize()
        self.mutex.release()
        return n
def qsize ( self ) : self . mutex . acquire ( ) n = self . _qsize ( ) self . mutex . release ( ) return n
Return the approximate size of the queue (not reliable!).
Return the approximate size of the queue ( not reliable! ) .