python - 使用 *args 和 **kwargs 在 Python 中初始化类 Object() 的正确方法

Question

我正在尝试在 Python 中使用*argsand进行一个小类初始化，但我遇到了一个错误。**kwargsobject has no attribute named x

class APIViewActions():
    def __init__(self, *args, **kwargs):
        list = kwargs.get('list', False)
        create = kwargs.get('create', False)
        retrieve = kwargs.get('retrieve', False)
        update = kwargs.get('update', False)
        partial_update = kwargs.get('partial_update', False)
        destroy = kwargs.get('destroy', False)

    def retrieve_actions(self):
        actions = {}

        if self.list:
            actions['get'] = 'list'

        if self.create:
            actions['post'] = 'create'

        if self.retrieve:
            actions['get'] = 'retrieve'

        if self.update:
            actions['patch'] = 'update'

        if self.partial_update:
            actions['patch'] = 'partial_update'

        if self.destroy:
            actions['delete'] = 'destroy'

        return actions

APIViewActions = APIViewActions(delete=True)

所以，当它被调用时：

APIViewActions.retrieve_actions()

我收到以下错误：

AttributeError：“APIViewActions”对象没有属性“列表”

当然，self.list应该是False？我本质上希望 APIViewActions() 调用定义松散，例如，可以这样调用：

APIViewActions = APIViewActions(delete=True)

APIViewActions = APIViewActions(list=true, delete=True)

这将如何实现？

标签： pythonpython-3.xpython-3.7

Answer 1

self上课不见了。

class APIViewActions():
    def __init__(self, *args, **kwargs):
        self.list = kwargs.get('list', False)
        self.create = kwargs.get('create', False)
        self.retrieve = kwargs.get('retrieve', False)
        self.update = kwargs.get('update', False)
        self.partial_update = kwargs.get('partial_update', False)
        self.destroy = kwargs.get('destroy', False)