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<p/><br></br><p><b> Book Synopsis </b></p></br></br><p>As Python continues to grow in popularity, projects are becoming larger and more complex. Many Python developers are taking an interest in high-level software design patterns such as hexagonal/clean architecture, event-driven architecture, and the strategic patterns prescribed by domain-driven design (DDD). But translating those patterns into Python isn't always straightforward.<br/><br/>With this hands-on guide, Harry Percival and Bob Gregory from MADE.com introduce proven architectural design patterns to help Python developers manage application complexity--and get the most value out of their test suites. <br/><br/>Each pattern is illustrated with concrete examples in beautiful, idiomatic Python, avoiding some of the verbosity of Java and C# syntax. Patterns include: </p><ul><li>Dependency inversion and its links to ports and adapters (hexagonal/clean architecture)</li><li>Domain-driven design's distinction between Entities, Value Objects, and Aggregates </li><li>Repository and Unit of Work patterns for persistent storage</li><li>Events, commands, and the message bus</li><li>Command-query responsibility segregation (CQRS)</li><li>Event-driven architecture and reactive microservices</li></ul><p/><br></br><p><b> About the Author </b></p></br></br><p>After an idyllic childhood spent playing with BASIC on French 8-bit computers like the Thomson T-07 whose keys go boop when you press them, Harry Percival spent a few years being deeply unhappy as a management consultant. Soon he rediscovered his true geek nature, and was lucky enough to fall in with a bunch of XP fanatics, working on the pioneering but sadly defunct Resolver One spreadsheet. He worked at PythonAnywhere LLP, spreading the gospel of TDD world-wide at talks, workshops and conferences. He is now with MADE.COM.</p><p>Bob Gregory is a UK-based software architect with MADE.COM. He has been building event driven systems with domain-driven design for more than a decade.</p>

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