1OjxTkA19 February 2016Visit http://shop.oreilly.com/category/browse-subjects/programming/python.do?sortby=bestSellers&sortType=1&code=DEAL&imm_mid=0e0a98&cmp=em-prog-books-videos-cat-dod_python_anniversary_20160219&utm_content=30422012&utm_medium=social&utm_source=twitter