Instruction: Describe the process of rendering templates in Flask and the role of Jinja2.
Context: This question tests the candidate's understanding of Flask's integration with Jinja2 for rendering dynamic HTML templates.
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Flask, a micro web framework written in Python, is designed to make web development simple and scalable. It integrates seamlessly with Jinja2, a powerful template engine for Python, to render dynamic HTML content. This integration allows developers like myself to build complex web applications efficiently.
At its core, the template rendering process in Flask involves a few key steps. Firstly, when a specific route is requested by a user, Flask handles the request and determines the appropriate view function to execute. Within this view function, we often need to return an HTML response that is dynamic in nature - that's where Jinja2 comes in....