python setattr

#object生成的对象不能使用setattr函数
>>> o=object()
>>> setattr(o,'name','ok')
 
Traceback (most recent call last):
  File "<pyshell#3>", line 1, in <module>
    setattr(o,'name','ok')
AttributeError: 'object' object has no attribute 'name'
 
#类对象生成的实例，可以使用setattr
>>> class test(object):
    name="xiaohua"
    def run(self):
        return "HelloWord"
>>> t=test()
 
>>> setattr(t, "age", "")>>> print hasattr(t, "age")
True
>>>