def preloop(self):
        """Initialization before prompting user for commands.
           Despite the claims in the Cmd documentaion, Cmd.preloop() is not a stub.
        """
        cmd.Cmd.preloop (self)   ## sets up command completion
        self._hist    = []      ## No history yet
        self._locals  = {}      ## Initialize execution namespace for user
        self._globals = {}
Initialization before prompting user for commands.
           Despite the claims in the Cmd documentaion, Cmd.preloop() is not a stub.
        
recipes/Python/473807_iTunes_Alarm_clock/recipe-473807.py