How can I implement pointers in Python?

How can I implement pointers in Python?

References

Reference NO 1

http://stackoverflow.com/questions/9821607/how-to-implement-pointers-in-python-or-any-similar-solution-else

Reference NO 2

http://stackoverflow.com/questions/3106689/pointers-in-python

Reference NO 3

http://forums.udacity.com/questions/8767/python-variables-are-they-really-pointers

Reference NO 4

http://www.laurentluce.com/posts/python-list-implementation/

Reference NO 5

http://tharindu-rusira.blogspot.com/2012/09/python-and-pointers.html

Reference NO 6

http://python-forum.org/viewtopic.php?f=6&t=5833

Reference NO 7

http://daveti.blog.com/2013/01/29/pointer-in-python/

Reference NO 8

http://bytes.com/topic/python/answers/523772-how-implement-linked-list-python