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A Book about Pythonic Application Architecture Patterns for Managing Complexity. Cosmos is the Opposite of Chaos you see. O'R. wouldn't actually let us call it "Cosmic Python" tho.
https://www.cosmicpython.com
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readme

Book repo

Book Code
Book Build Status Code build status

Table of Contents

O'Reilly have generously said that we will be able to publish this book under a CC license, In the meantime, pull requests, typofixes, and more substantial feedback + suggestions are enthusiastically solicited.

Chapter
Preface
Introduction: Why do our designs go wrong?
Part 1 Intro
Chapter 1: Domain Model Build Status
Chapter 2: Repository Build Status
Chapter 3: Interlude: Abstractions
Chapter 4: Service Layer (and Flask API) Build Status
Chapter 5: TDD in High Gear and Low Gear Build Status
Chapter 6: Unit of Work Build Status
Chapter 7: Aggregates Build Status
Part 2 Intro
Chapter 8: Domain Events and a Simple Message Bus Build Status
Chapter 9: Going to Town on the MessageBus Build Status
Chapter 10: Commands Build Status
Chapter 11: External Events for Integration Build Status
Chapter 12: CQRS Build Status
Chapter 13: Dependency Injection Build Status
Epilogue: How do I get there from here?
Appendix A: Recap table
Appendix B: Project Structure Build Status
Appendix C: A major infrastructure change, made easy Build Status
Appendix D: Django Build Status
Appendix F: Validation

Below is just instructions for me and bob really.

Dependencies:

gem install asciidoctor
python2 -m pip install --user pygments
gem install pygments.rb
gem install asciidoctor-diagram

Commands

make html  # builds local .html versions of each chapter
make test  # does a sanity-check of the code listings