Python静态setter和getter？

Question

我已经为我的django应用程序放了一个Jira客户端,现在需要将它设置为静态,但我无法知道如何转换@property和@?.setter静态字段:

说我有一节课:

class nothing(object):
    auth_token = None
    counter = 0

    @property
    def a(self):
        self.log('getter')
        if not self.auth_token:
            self.auth_token = 'default'
        return self.auth_token

    @a.setter
    def a(self, value):
        self.log('setter')
        self.auth_token = value

    def log(self, value):
        self.counter+=1
        print '{0} called / counter: {1}'.format(value, self.counter)

我希望它的方法是静态的:

class nothing:
    auth_token = None
    counter = 0

    @staticmethod
    def get_a():
        nothing.log('getter')
        if not nothing.auth_token:
            nothing.log('auth_token value is None, setting')
            nothing.auth_token = 'default'
        return nothing.auth_token

    @staticmethod
    def set_a(value):
        nothing.log('setter')
        nothing.auth_token = value

    @staticmethod
    def log(value):
        nothing.counter+=1
        print '{0} called / counter: {1}'.format(value, nothing.counter)

不能标记get_a为@property现在调用它将返回一个对象,而不是实际调用get_a.方法是我可以忍受的,但是有没有办法让getter/setter代替呢？

Answer 1

最简单的方法是使这个类单身.而不是使方法静态,使用其实例覆盖类:

nothing = nothing()

如果要拥有多个实例,也可以使用元类.

http://en.wikibooks.org/wiki/Python_Programming/MetaClasses