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解释表述不对

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一际孤鸿_FBW

#1 Created at ... [Delete] [Delete and Lock User]

在ModelMetaclass中，一共做了几件事情：

其中第二点说明：

实例的属性会遮盖类的同名属性

这就句话说得不对，因为Model继承了dict，属于类字典，同样User也是类字典。因为初始化User对象时，其实就是初始化一个字典，但存在类属性名与 字典中的键 重名的情况，这样u.id 访问倒是IntegerField('id')，而不是所期望的u['id'],所以在元类中要删除id,name,email,password这些类属性，并通过

__getattr__()

的定制方法，使其u.id 等价于 u.['id']

一际孤鸿_FBW

#2 Created at ... [Delete] [Delete and Lock User]

上面最后一句话有笔误，不是“u.['id']”, 而是“u['id']”

John_啊呜

#3 Created at ... [Delete] [Delete and Lock User]

有道理！学习了！

yylpolar9527

#4 Created at ... [Delete] [Delete and Lock User]

解释得不错！！

yylpolar9527

#5 Created at ... [Delete] [Delete and Lock User] 
class Model(dict):
    def __init__(self, **kw):
        super(Model, self).__init__(**kw)

class User(Model):
    id = 'class attr'

>>> u.id
'class attr'
>>> u['id']
12345
>>>

yylpolar9527

#6 Created at ... [Delete] [Delete and Lock User] 
class Model(dict):
    def __init__(self, **kw):
        super(Model, self).__init__(**kw)

class User(Model):
    id = 'class attr'

>>> u = User(id=12345)
>>> u.id
'class attr'
>>> u['id']
12345
>>>
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