The Road to Python, Part 1: Introduction and Basics of Python

Part 1: Introduction and Basics of Python

1. What is python?

Python is a high-level scripting language that combines interpreted, compiled, interactive, and object-oriented scripts.

2. Features of python:

(1) Easy to learn and easy to use;

(2) High development efficiency, built-in many data types, and powerful standard library support;

(3) high-level languages;

(4) Portability, based on open source features

(5) Scalability, if you need a critical piece of code that runs very fast, or want to write some algorithms that you don’t want to open, you can use C or C++ to complete that part of the program, and then call it from your Python program.

(6) Embeddable, you can embed Python into a C/C++ program, allowing users of your program to gain "scripting" capabilities.

3. Installation of python:

Windows installation:

    （1）下载安装包

     https://www.python.org/downloads/windows/

     

       (2) Configure environment variables

• Right-click on "Computer" and then click on "Properties"
• Then click on "Advanced System Settings"
• Select "Path" under the "System Variables" window and double-click it;
• Then in the "Path" line, add the python installation path.

Linux installation

        (1) Download the installation package (the system may come with python2.7 installed as needed)

          Browser access https://www.python.org/downloads/source/

         (2) Enter environment variables in bash linux:

export PATH="$PATH:/usr/local/bin/python"