python - Pylint 说 : W0233: __init__ method from a non direct base class 'Nested' is called (non-parent-init-called)

Question

我也是编程和Python的新手。当我尝试将数据结构包装到类中以避免 list 或 dict 迭代时，我收到 pylint 错误消息:

W0233: __init__ method from a non direct base class 'Nested' is called (non-parent-init-called)

有没有最好的“Pythonic”方法来做到这一点？

我的json数据是这样的:

{
    "template"  :   [
        {
            "folder"    :   "/Users/SA/Documents/GIT/rs-finance/templates",
            "basetpl"   :   "tpl.docx",
            "header"    :   "header_tpl.docx",
            "table"     :   "table_tpl.docx", 
            "footer"    :   "footer_tpl.docx"
        }
    ],
    "export"    :   [
        {
            "folder"    :   "/Users/SA/Documents/GIT/rs-finance/export",
            "name"      :   "result.docx"
        }
    ]
}

当我将此数据(或其片段)加载到 dict 或 list 变量并尝试用此类包装它时:

class Nested ():
    def __init__(self, data):
        if isinstance (data, dict):
            for key, value in data.items():
                if isinstance(value, (float, int, str)):
                    setattr(self, key, value)
                else:
                    setattr(self, key, Nested(value))
        if isinstance(data, list):
            for item in data:
                self.__init__(item)

Pylint 不喜欢我的最后一行 😳

Answer 1

显式调用 __init__ 并没有错，但它很奇怪，这就是 Pylint 警告您的全部内容。

更好的做法是编写一个单独的递归函数来执行您想要的操作，然后从 __init__ 调用该函数。

class Nested:
    def __init__(self, data):
        self.recursive(data)

    def recursive(self, data):
        if isinstance(data, dict):
            for key, value in data.items():
                if isinstance(value, (float, int, str)):
                    setattr(self, key, value)
                else:
                    setattr(self, key, Nested(value))
        elif isinstance(data, list):
            for item in data:
                self.recursive(item)