Python

A collection of Python content for builders and learners.

Infographic contrasting DAO's direct table access with a Repository's Aggregate Root and connected entities.

Engineering SEP 19, 2023 5 Min Read

Is Your Repository Just a DAO in a Costume?

Understanding the repository pattern versus DAO in Domain-Driven Design can be quite insightful. We'll explore the Aggregate Root rule that distinguishes them, illustrated with practical Python code, and discuss scenarios when it might be okay to skip this rule.

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A glowing DAO cube linking a SQL database icon to Python and code file icons

Engineering SEP 10, 2023 5 Min Read

A Guide to Data Access Objects

Discover the DAO pattern in Python: understand how a Data Access Object functions, see how it differs from the Repository pattern, and find out when adding that extra layer can be really helpful.

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AI & ML MAR 18, 2019 4 Min Read

Introduction to Sum Tree

Sum Trees are a data structure for sampling data by priority, commonly used in reinforcement learning to prioritize experiences that are most valuable for a model to learn from.

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Engineering DEC 3, 2018 2 Min Read

Python Coding Best Practices

A practical style guide for writing clean, consistent Python code. These are the conventions used by the Machine Learning Team at FCode Labs.

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