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Book synopsis

Python Code Quality: Testing, Refactoring, and Reliability is a practical guide for developers who want to move beyond simply making programs run and start building software that is robust, scalable, and trusted in production environments. Whether you're an aspiring Python developer, software engineer, technical lead, or computer science student, this book provides the proven techniques used by experienced professionals to create high-quality codebases.

Through real-world examples and hands-on explanations, you'll learn how to identify hidden defects, eliminate technical debt, improve architecture, and develop confidence in every code change you make.

Inside you'll discover how to:

• Design clean, readable, and maintainable Python code
• Build comprehensive testing strategies with unit, integration, functional, and end-to-end tests
• Master pytest, mocking, fixtures, and test automation techniques
• Apply Test-Driven Development (TDD) to create more reliable applications
• Refactor legacy code safely without introducing new bugs
• Detect and eliminate code smells before they become costly problems
• Use static analysis, linting, formatting, and type checking tools effectively
• Improve code coverage while focusing on meaningful tests that deliver value
• Implement continuous integration pipelines for automated quality assurance
• Debug complex issues faster with systematic troubleshooting methods
• Increase application reliability through defensive programming practices
• Reduce production failures with robust error handling and validation techniques
• Measure, monitor, and continuously improve software quality metrics
• Create maintainable architectures that support long-term growth and collaboration
• Establish professional coding standards for individual and team projects

You'll also explore advanced topics such as dependency management, automated quality gates, performance testing, regression prevention, code review best practices, reliability engineering principles, and maintaining large Python applications in production.

Unlike books that focus only on syntax or isolated testing concepts, this comprehensive guide shows how testing, refactoring, automation, and engineering discipline work together to create software users can depend on.

Whether you're building web applications, APIs, automation tools, data processing systems, machine learning pipelines, or enterprise software, the techniques in this book will help you deliver cleaner code, reduce defects, and increase development confidence.

Book details

• Full title: Python Code Quality
• Subtitle: Testing, Refactoring, and Reliability
• Author: Raymond Colebrook
• Language: English
• Binding: Paperback
• Number of pages: 232
• EAN: 9798198613461
• ID: 52747332
• Publisher: Independently published
• Weight: 318 g
• Dimensions: 229 × 152 × 12 mm
• Date of publishing: 31. May 2026

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