Download and installation of Python

First, download (official)

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

Mine is the WINDOW7 system.

Second, the installation of detailed procedures

When selecting a step in the installation component, check all the components:

In particular, be careful to select pip and Add python.exe to Path , then go all the way "Next" to complete the installation.

Then open a command Prompt window, and after you type Python, there are two things:

Situation One:

See the following screen to show that the Python installation was successful!

Situation two: Get an error:

‘python’不是内部或外部命令，也不是可运行的程序或批处理文件。

This is because Windows will be based on a Path path set by the environment variable to find python.exe , if not found, will be an error. If you omit the tick when you install Add python.exe to Path it, manually python.exe add the path D to your path :\Python27 .

If you do not know how to modify the environment variables, it is recommended to run the Python installer again, remember to tick Add python.exe to Path . Therefore, you do not have to configure environment variables.

Download and installation of Python