Flask is a lightweight WSGI web framework for Python, designed to make getting started quick and easy while providing the flexibility to scale to complex applications. Unlike full-stack frameworks, Flask is intentionally minimalist — it provides core functionality for routing, requests, and templating, then lets you choose extensions for databases, authentication, and other features. This modular approach makes Flask particularly well-suited for microservices, REST APIs, and projects where you want control over the architecture without unnecessary abstractions.

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