无法在Python中访问父成员变量 [英] Can't access parent member variable in Python

问题描述

我正在尝试从扩展类访问父成员变量.但是运行以下代码...

I'm trying to access a parent member variable from an extended class. But running the following code...

class Mother(object):
    def __init__(self):
        self._haircolor = "Brown"

class Child(Mother):
    def __init__(self): 
        Mother.__init__(self)   
    def print_haircolor(self):
        print Mother._haircolor

c = Child()
c.print_haircolor()

让我看到这个错误:

AttributeError: type object 'Mother' has no attribute '_haircolor'

我在做什么错了?

推荐答案

您正在混淆类和实例属性.

You're mixing up class and instance attributes.

print self._haircolor

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