Download and install python.

Download:

You can download different versions of python from official python website in zip/msi/tar format. Download any format and install it. I am using Windows operating system and python version 2.7.1. you can choose your own distribution according to your environment.

After installation, set classpath to <python_root> directory so that you can run your program from anywhere.

To verify installation, go to command prompt and type python -V or python --version and press enter. It will display python version.

To launch the interactive shell of python, go to command prompt, type python and press enter.(Note: if you have not set classpath then you have to go to python root directory first and then have to type python).