46     def __init__(self, *args, **kwargs):  argument
47         threading.Thread.__init__(self, *args, **kwargs)
48         self.killed = False
50     def start(self):  argument
51         self.__run_backup = self.run
52         self.run = self.__run      # Force the Thread to install our trace.
53         threading.Thread.start(self)
55     def __run(self):  argument
56         sys.settrace(self.global_trace)
57         self.__run_backup()
58         self.run = self.__run_backup
60     def global_trace(self, frame, why, arg):  argument
62             return self.local_trace
66     def local_trace(self, frame, why, arg):  argument
67         if self.killed:
70         return self.local_trace
72     def kill(self):  argument
73         self.killed = True
76     def __init__(self, arg):  argument
81         super(Timeout, self).__init__(arg)