human
Solve the following python programming problem given the following code:
def messagebox_on_error(msg) : 
    'Decorator that catches exceptions and displays an error message' 
    def decorator(func) : 
        @ wraps (func) 
        def wrapper(* args, **kwargs) : 
            try : 
                return func (* args, ** kwargs) 
except Exception as e : 
                m = ('%s
%s' % (msg, e.message)) 
                detail = str (traceback.format_exc ()) 
                qmb = QMessageBox (QMessageBox.Critical, 'Error', m) 
                qmb.setDetailedText (detail) 
                qmb.resize (400, qmb.size ().height ()) 
                qmb.exec_ () 
return wrapper 
return msg 

    
    

    Fix the buggy line: return msg
assistant
#Here is Python code to fix the buggy line: return msg
.

return def decorator(