Python 中嵌套类的替代方案是什么

发布于 2024-11-24 04:33:29 字数 446 浏览 0 评论 0原文

我读过一篇文章，指出“嵌套类不是Pythonic”，还有什么选择

请原谅我，这不是最好的例子，但它是基本概念。用于执行任务的嵌套类。我基本上必须在多个线程中连接到服务。

import threading, imporedlib

class Mother(threading.Thread):
    def __init__(self,val1,val2):
        self.VAL1 = val1
        self.VAL2 = val2
    def connectandrun():
        for i in range(5):
            Child.run(i)
    class Child:
        def run(self):
            importedlib.runajob(Mother.VAL1, Mother.VAL2)

原文

I read a post stating that 'nested classes wasn't pythonic' what's the alternative

please forgive me, this isn't the best example but it's the basic concept. a nested class for performing a task. I'm basically having to connect to a service in multiple threads.

import threading, imporedlib

class Mother(threading.Thread):
    def __init__(self,val1,val2):
        self.VAL1 = val1
        self.VAL2 = val2
    def connectandrun():
        for i in range(5):
            Child.run(i)
    class Child:
        def run(self):
            importedlib.runajob(Mother.VAL1, Mother.VAL2)

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情释 2024-12-01 04:33:29

你想要使用组合：

import threading, importedlib

class Child:
    def __init__(self, parent):
        self.parent=parent

    def run(self):
        importedlib.runajob(parent.VAL1, parent.VAL2)



class Mother(threading.Thread):
    def __init__(self,val1,val2):
        self.VAL1 = val1
        self.VAL2 = val2

    def connectandrun():
        c= Child(self)
        for i in range(5):
            c.run(i)

当然，“母亲”和“孩子”这个名字在这里不再合适，但你明白了。

You want to use composition:

import threading, importedlib

class Child:
    def __init__(self, parent):
        self.parent=parent

    def run(self):
        importedlib.runajob(parent.VAL1, parent.VAL2)



class Mother(threading.Thread):
    def __init__(self,val1,val2):
        self.VAL1 = val1
        self.VAL2 = val2

    def connectandrun():
        c= Child(self)
        for i in range(5):
            c.run(i)

Of course the names "Mother" and "Child" are not really appropriate anymore here, but you get the idea.

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