Data Science Roadmap

Official Python Docs
https://docs.python.org/3/

Tools:
http://docs.python-guide.org/en/latest/dev/virtualenvs/
http://www.pythonforbeginners.com/basics/python-pip-usage

Practice:
http://www.practicepython.org/
https://www.hackerrank.com
https://wiki.python.org/moin/PythonDecorators

Python GUI FAQ

https://docs.python.org/3/faq/gui.html