Windows:
1.Python installation package Download
can go to the official website to download the installation package: https://www.python.org/downloads/
2.Python Installation
Default installation path: C:\python27; You can also change the installation path yourself.
3. Environment variable Configuration
A. During installation, the installation path can be automatically added to the environment variable.
B. If the installation is not checked, you can also pass: "Right-click Computer"-"Properties"-"Advanced system Settings"-"Advanced"-"Environment variable"-"in the Second content box find the variable named path of a row, double-click"-" The Python installation directory is appended to the variable value, using; split "such as: the original value; C:\python27, remember that there is a semicolon in front.
4. Update the Python version
Unloading load, the computer can have multiple versions of Python at the same time.
Python Environment installation