Python

http://www.python.org

http://en.wikipedia.org/wiki/List_of_Python_software
http://wiki.python.org/moin/Python2orPython3

Formation

http://mechanicalmooc.org

http://python.about.com/od/gettingstarted/ss/whatispython_4.htm
http://python.about.com

http://docstore.mik.ua/orelly/other/python
http://docstore.mik.ua/orelly/other/python2

http://www.codecademy.com/tracks/python
https://www.codecademy.com/learn/python

Discussion

http://stackoverflow.com/questions/1507041/how-do-i-get-fluent-in-python
http://www.infoworld.com/article/2887974/application-development/a-developer-s-guide-to-the-pro-s-and-con-s-of-python.html
http://opensource.com/business/15/10/jane-austen-on-python
http://opensource.com/article/17/3/writing-web-service-using-python-flask
http://opensource.com/resources/python/gui-frameworks

http://www.linuxjournal.com/content/threading-python
http://opensource.com/article/18/2/why-python-devs-should-use-pipenv