无法从另一个类python访问变量 [英] Can't access variable from another class python

问题描述

这是我的代码，应该可以从设置"类中打印出self.cake和self.age.

Here is my code which is supposed to print self.cake and self.age from the class Settings.

from startup import Settings
class Profile(Settings):
    def __init__(self):
        super(Profile, self).__init__()

    def print_settings(self):
        print self.cake
        print self.age

p = Profile()
p. print_settings()

其他python脚本

class Settings(object):
    def __init__(self):
        self.cake = 1

    def number(self):
        self.age = 5

但我不断得到:

AttributeError: 'Profile' object has no attribute 'age'

我需要能够从print_settings函数中打印变量.

I need to be able to print the variables from the print_settings function.

我该怎么办?

推荐答案

在调用 print_settings 方法之前，您必须设置 age 属性.

You have to set the age attribute before calling the print_settings method.

一个选择是:

p = Profile()
p.number()
p.print_settings()

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