human
Solve the following python programming problem given the following code:
def _qtimer_schedule(self, time, action, state, periodic = False) : 
    scheduler = self 
    msecs = self.to_relative (time) 
    disposable = SingleAssignmentDisposable () 
    periodic_state = [action] 
    def interval() : 
        if periodic : 
            periodic_state [0] = action (periodic_state [0]) 
else : 
            disposable.disposable = action (scheduler, state) 
log.debug ('timeout: %s', msecs) 
    timer = self.qtcore.QTimer () 
    timer.setSingleShot ((not periodic)) 
    timer.timeout.connect (interval) 
    timer.setInterval (msecs) 
    timer.start () 
    self._timers.add (timer) 
    def dispose() : 
        timer.stop () 
        self._timers.remove (timer) 
return CompositeDisposable (disposable, Disposable (dispose)) 

    
    

    Fix the buggy line: periodic_state = [action]
assistant
#Here is Python code to fix the buggy line: periodic_state = [action]
.

periodic_state = [state]