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Event Sourcing in Python

A session at PyCon UK 2014

Most Python applications today follow a classic architecture where a data or domain model is implemented in terms of mutable data structures, be they relational database tables accessed via an object-relational mapper, or more free-form data stored in a graph or document store. Mutability implies the obliteration of historical state, and attempts to overcome this shortcoming often lead to overly complex models and applications.

Event sourced architectures take an alternative approach of storing all changes to a model in an append-only store as they occur. The stored history is immutable – bringing numerous scalability benefits – and contains sufficient information to reconstitute the model at any point in its history.

In this talk we show how to implement a simple persistent domain model in Python backed by event-sourced persistence without any need frameworks, ORMs or even a database!

About the speaker

This person is speaking at this event.
Robert Smallshire

Founder of Sixty North, an application, consulting and training business. Open source hacker and hobby technologist by night. Living and working in Oslo.

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PyCon UK 2014

England England, Coventry

19th22nd September 2014

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Official event site

www.pyconuk.org

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