Is it possible to create anonymous objects in Python?

I like Tetha's solution, but it's unnecessarily complex.

Here's something simpler:

>>> class MicroMock(object):
...     def __init__(self, **kwargs):
...         self.__dict__.update(kwargs)
...
>>> def print_foo(x):
...     print x.foo
...
>>> print_foo(MicroMock(foo=3))
3

I found this: http://www.hydrogen18.com/blog/python-anonymous-objects.html, and in my limited testing it seems like it works:

>>> obj = type('',(object,),{"foo": 1})()
>>> obj.foo
1