Hi Mohamed, I love Django for its "batteries included" philosophy, meaning that you get the backend for free and a lot of stuff for database abstraction. But often you just need some kind of webserver backend logic and Django is oversized for that purpose. In that case I go with Flask which has a modular approach so that you need to gather the parts yourself that you need. If you come from a Python background I think there is a lot to explore with Python for the web and it very well into the data science landscape.