在定义类时在python中使用给定名称设置类属性 [英] Setting a class attribute with a given name in python while defining the class

问题描述

我正在尝试做这样的事情:

I am trying to do something like this:

property = 'name'
value = Thing()
class A:
  setattr(A, property, value)
  other_thing = 'normal attribute'

  def __init__(self, etc)
    #etc..........

但是我似乎找不到对类的引用来使setattr起作用，就像在类定义中分配变量一样.我该怎么办?

But I can't seem to find the reference to the class to get the setattr to work the same as just assigning a variable in the class definition. How can I do this?

推荐答案

您需要为此使用元类:

property = 'foo'
value = 'bar'

class MC(type):
  def __init__(cls, name, bases, dict):
    setattr(cls, property, value)
    super(MC, cls).__init__(name, bases, dict)

class C(object):
  __metaclass__ = MC

print C.foo

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