Python is available on a wide variety of platforms, including Linux and Mac OS. Open a command prompt and type "python" to find out if it is already installed and which version is installed.
The most up-to-date and current source code, documentation, news, python software etc., is available on the Python official website https://www.python.org/.
or
You can download it from here: Python 3.10 64bit
Select Add Python [3.7] to PATH
Click 'Customize installation for more option
Click Next
In Advanced Options: check install for all users and select installation path. eg. c:\python37
Click Install
After successfully install python, open cmd and type 'python' it will show python and IDLE installed version.