human
Solve the following python programming problem given the following code:
def __init__(self, text = '', halign = 'left', style = 'normal', menu = None) : 
    super (Label, self).__init__ () 
    lbl = QtGui.QLabel (text) 
    if (halign == 'left') : 
        lbl.setAlignment (QtCore.Qt.AlignLeft) 
else : 
        if (halign == 'center') : 
            lbl.setAlignment (QtCore.Qt.AlignHCenter) 
else : 
            if (halign == 'center') : 
                lbl.setAlignment (QtCore.Qt.AlignRight) 
self.widget = lbl 
    lbl.mousePressEvent = self._cb_redirect 
    if (style == 'clickable') : 
        lbl.setSizePolicy (QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Minimum) 
        lbl.setFrameStyle ((QtGui.QFrame.Box | QtGui.QFrame.Raised)) 
if (menu is not None) : 
        lbl.setContextMenuPolicy (QtCore.Qt.CustomContextMenu) 
        menu_w = menu.get_widget () 
        def on_context_menu(point) : 
            menu_w.exec_ (lbl.mapToGlobal (point)) 
lbl.customContextMenuRequested.connect (menu) 
self.enable_callback ('activated') 

    
    

    Fix the buggy line: lbl.customContextMenuRequested.connect (menu)
assistant
#Here is Python code to fix the buggy line: lbl.

lbl.customContextMenuRequested.connect (def on_context_menu()