Can anybody help me in building an interactive chat application in Python?

It seems you are making a web application and not just a chat so I would recommend using a framework such as Django as it removes a lot of hardwork.Minimum Requirements: HTML, CSS JavaScript for the 15 minute timer Python Database to store user information Django - It also has a ORM which simplifies using a database. https://www.djangopackages.com/packages/p/django-websocket-redis/ - messaging using websockets and Django I believe doing it this way if you have the time, would allow you to create an amazing project not just for the course but to show to future employers.

I tried ajax, but as you know its too burden for server. But later found websocket which is perfect.What I tried is first pass message, sender and destination through JQuery. And then do whatever it takes to make sure destination gets messages which is meant for him/her.After 15 minutes 900 timestamp change sender, destination value into name fetching from database.