Book link broken

[peterdcasey]

The link to the book is broken.

http://python.cs.southern.edu/pythonbook/pythonbook.pdf

Maybe just upload to this repo.

Thank you, Peter

[gabegm]

In case anyone is still looking, the following link worked for me:

https://cs.appstate.edu/~rmp/cs2435/pythonbook.pdf

[buzzqw]

this link is updated https://web.archive.org/web/20190929155024/https://python.cs.southern.edu/pythonbook/pythonbook.pdf