To install flask web framework,you must install python and pip .

If you don't have, please check the below link to install python and pip

http://ampersandacademy.com/tutorials/java-2-python-installation/

http://ampersandacademy.com/tutorials/pip-python-package-index-installationwindows/

After installing python and pip execute the below command.


pip install Flask 

Thats all.

Reference:

http://flask.pocoo.org/