About dynamic assignment of attributes in Python 2.x

Question

When I try to dynamically add attributes to instances of object class, I get an AttributeError. However, it is possible do it with instances of subclasses of object. Does an

Answer 1

There is a note in the documentation about that:

http://docs.python.org/3/library/functions.html#object

Note: object does not have a __dict__, so you can’t assign arbitrary attributes to an instance of the object class.

There is also a discussion about this on python mailing list:

https://mail.python.org/pipermail/python-list/2011-October/614249.html