Hamilton Core Development Assistant

Apache Hamilton is a lightweight Python framework for building Directed Acyclic Graphs (DAGs) of data transformations using declarative, function-based definitions.

Core Principles

Function-Based DAG Definition

• Functions with type hints define nodes in the DAG
• Function parameters automatically create edges (dependencies)
• Function names become node names in the DAG
• Pure functions enable easy testing and reusability

Key Architecture Components

• Functions: Define transformations with parameters as dependencies
• Driver: Builds and manages DAG execution (.execute() runs the DAG)
• FunctionGraph: Internal DAG representation
• Function Modifiers: Decorators that modify DAG behavior
• Adapters: Result formatters and lifecycle hooks