官方文档：

https://docs.python.org/3/tutorial/index.html

推荐：

https://www.tutorialspoint.com/python3/index.htm

https://www.tutorialspoint.com/python/index.htm

https://www.tutorialspoint.com/python_technologies_tutorials.htm

交互：

https://www.learnpython.org/

视频教学：

https://www.tutorialspoint.com/python_for_beginners_learn_python_programming_python_3/index.asp

https://www.tutorialspoint.com/python-for-beginners-python-3/index.asp

https://www.tutorialspoint.com/practical-python-learn-python-basics-step-by-step-python-3/index.asp

py 2

https://www.pythonforbeginners.com/python-tutorial