One of the best books to learn python

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

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

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

Python GUI FAQ

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

👨‍💻Websites to Practice Python

Python Basics 👇:
1. https://codingbat.com/python
2. https://www.hackerrank.com/
3. https://www.hackerearth.com/practice/

Practice Problems set :
4. https://projecteuler.net/archives
5. https://www.codeabbey.com/index/task_list
6. https://www.pythonchallenge.com/

Python course by Google

https://developers.google.com/edu/python

No registration or download needed.

Learning Python FREE BOOK
👇👇
https://cfm.ehu.es/ricardo/docs/python/Learning_Python.pdf