The path to learning Python

After years of application software development, it is increasingly felt that network security is not the past, but has not been able to spare time to study; With the advent of Alphago, artificial intelligence, big data analysis and other waves on the technology will be python pushed to my eyes. Python's strong support for network programming and mathematical analysis has long been heard, and it's time to start learning well.

Use essays to record the process of learning, and then organized into articles published

Constant:

There is no concept of constants in Python, but it is customary to use a full-capitalization variable name to express that variable as a constant, such as: Pei_value = 3.14 (the Pei_value value in the program can still be changed, just a contract specification).

The path to learning Python