Flask is a micro web framework written in Python. It is classified as a microframework because it does not require particular tools or libraries. It has no database abstraction layer, form validation, or any other components where pre-existing third-party libraries provide common functions.
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Let’s look at the small, yet powerful JavaScript UI library ReactJS in action, as we build a basic web application. This app is powered by Python 3 and the Flask framework in the back-end and React in the front .
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