您只需将property对象本身复制到新类中。它将保存对getter、setter和deleter函数的引用，不需要跨这些函数进行复制。在

对于新样式的类，您的代码无法工作；您不能将分配给class__dict__属性：>>> item = SetProperties(Item01Object)

Traceback (most recent call last):

File "", line 1, in

File "", line 4, in SetProperties

TypeError: 'dictproxy' object does not support item assignment

使用setattr()来设置新样式类的属性：

^{pr2}$

请注意，property对象是跨批发复制的。在

演示：>>> class Item01Object(object):

... properties = ["a","c"]

... ATTR = None

...

>>> def SetProperties( ItemObject ):

... for propName, cls in AttrContainer.__dict__.iteritems():

... if propName in ItemObject.properties:

... setattr(ItemObject, propName, cls.__dict__[propName])

... return ItemObject()

...

>>> item = SetProperties(Item01Object)

>>> item

>>> item.a

>>> item.a = 20

>>> item.a

23.021

不过，您只需跨property对象复制到目标类一次；函数返回一个实例意味着您计划将其用于创建的所有实例。在

我会让它变成一个装饰师：def set_properties(cls):

for name, propcls in vars(AttrContainer).iteritems():

if name in cls.properties:

setattr(cls, name, vars(propcls)[name])

return cls

然后在您的每个Item*Object类上使用此选项：@set_properties

class Item01Object(object):

properties = ["a","c"]

ATTR = None

@set_properties

class Item02Object(object):

properties = ["b","c"]

ATTR = None

演示：>>> def set_properties(cls):

... for name, propcls in vars(AttrContainer).iteritems():

... if name in cls.properties:

... setattr(cls, name, vars(propcls)[name])

... return cls

...

>>> @set_properties

... class Item01Object(object):

... properties = ["a","c"]

... ATTR = None

...

>>> @set_properties

... class Item02Object(object):

... properties = ["b","c"]

... ATTR = None

...

>>> item01 = Item01Object()

>>> item01.c = 20

>>> item01.c

3

>>> item02 = Item02Object()

>>> item02.b = 42

Traceback (most recent call last):

File "", line 1, in

AttributeError: can't set attribute

>>> item02.b

'Something'