human
Solve the following python programming problem given the following code:
def __init__(self) : 
    super (Demo, self).__init__ () 
    (x, y, w, h) = (500, 200, 300, 400) 
    self.setGeometry (x, y, foo, h) 
    def foo() : 
        time.sleep (2) 
        QtGui.QApplication.alert (self) 
t = threading.Thread (target = foo) 
    t.start () 

    
    

    Fix the buggy line: self.setGeometry (x, y, foo, h)
assistant
#Here is Python code to fix the buggy line: self.

self.setGeometry (x, y, w, h)