Python:公共(public)方法调用它们的 'brother' 私有(private)方法

我编写 Python 代码才几周时间，所以我仍在弄清楚这片土地的布局。但是假设我有一个方法可能会被“用户”偶尔调用并且在内部大量使用(即，参数在调用之前已经过检查)。这是我目前正在做的事情:

#The method the 'user' should call: 
def do_something(self, arg1, arg2, arg3): 
    #write code to do error checking on arg1, agr2, arg3 
    #raise exceptions, return codes, etc: depends on whether you are an explicit lover 
    #or an implicit lover, it seems. :-) 
    ... error checking code here... 
    #Now call the 'brother' method that does the real work. 
    return self._do_something(self, arg1, arg2, arg3, arg3) 
 
#The method other private methods should call with already validated parameters 
def _do_something(self, arg1, arg2, arg3, arg3): 
    #don't do error checking on the parameters. get to work... 
    ... do what you do... 
    return whatever you're supposed to return 

这对我来说似乎合乎逻辑。是否有更好的类似 Python 的方法来执行此操作？

保罗

请您参考如下方法:

没关系。但是，您的代码中对“兄弟”方法的调用是错误的。你应该这样做:

# Now call the 'brother' method that does the real work. 
return self._do_something(arg1, arg2, arg3, arg3) 

也就是说，您应该“通过”自引用来调用它，因为它是一个对象方法而不是全局函数。