Overview

Python in Practice - Volume III provides an in-depth guide to designing and building scalable Python applications using proven architectural patterns and modern web frameworks. This volume is tailored for software professionals who want to move beyond writing scripts and start crafting production-ready systems that are modular, maintainable, and robust. The book begins with foundational principles such as separation of concerns, clean architecture, and dependency management. It then demonstrates how these principles are applied in real-world scenarios using Flask and FastAPI, two of the most widely adopted Python web frameworks. Readers will learn how to: Structure Python applications for clarity and scalability Implement routing, request handling, and dependency injection Build and version RESTful APIs using best practices Render dynamic HTML with Jinja2 templates Secure applications with OAuth2 and JWT-based authentication Optimize deployment using Docker, Uvicorn, and Gunicorn Monitor, log, and test applications for long-term reliability Whether working in backend development, cloud-native environments, or full-stack engineering, this volume equips readers with the tools and knowledge to apply architectural thinking to Python projects. With code examples, implementation patterns, and deployment-ready strategies, it serves as both a reference and a hands-on guide for professional developers. Take your Python expertise to the next level-by mastering the architectural patterns that underpin today's modern software systems.

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