def unlock(self):
        """Unlock a mutex.  If the queue is not empty, call the next
        function with its argument."""
        if self.queue:
            function, argument = self.queue.popleft()
            function(argument)
        else:
            self.locked = False
def unlock(self):
        """Unlock a mutex.  If the queue is not empty, call the next
        function with its argument."""
        if self.queue:
            function, argument = self.queue.popleft()
            function(argument)
        else:
            self.locked = False
def unlock ( self ) : if self . queue : function , argument = self . queue . popleft ( ) function ( argument ) else : self . locked = False
Unlock a mutex.  If the queue is not empty, call the next
        function with its argument.
Unlock a mutex . If the queue is not empty call the next function with its argument .