【发布时间】:2010-07-21 07:11:55
【问题描述】:
Python 2.6.4 (r264:75706, Dec 7 2009, 18:45:15)
[GCC 4.4.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> class A(object):
... def f(self):
... print self.k
...
>>> class B(object):pass
...
>>> a=A()
>>> b=B()
>>> a.k="a.k"
>>> b.k="b.k"
>>> a.f()
a.k
>>> A.f(a)
a.k
>>> A.f(b)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: unbound method f() must be called with A instance as first argument (got B instance instead)
>>>
我该怎么做?
编辑:这个例子更清楚了
【问题讨论】:
-
需要这样做是不寻常的。你是不是不能用
staticmethod装饰器来解决你的问题?