python通过点操作符和reduce遍历对象的属性的代码

如下的资料是关于python通过点操作符和reduce遍历对象的属性的内容，应该能对码农们有较大用途。

class Klass(object):

    def __getattr__(self, name):
        """
        Locate the function with the dotted
        attribute.
        """
        def traverse(parent, child):
            if instance(parent, str):
                parent = getattr(self, parent)
            return getattr(parent, child)
        return reduce(traverse, name.split('.'))