GitHub - lihaoyi/macropy: Macros in Python: quasiquotes, case classes, LINQ and more!

Abstraction: Python library enabling AST-transforming syntactic macros at import time

Key points:

• MacroPy transforms a Python program's AST at import time, allowing user-defined macros to add syntax impossible in plain Python.
• Key features include quasiquotes, case classes (algebraic data types with structural equality), LINQ-style queries, and a trace macro for expression-level debugging.
• Runs on CPython 3.4+ and PyPy 3.5; installable via pip install macropy3.
• Created as a final project for MIT 6.945 (Adventures in Advanced Symbolic Programming); inspired by Scala Macros and Karnickel.
• Optional extras (pinq, pyxl) install dependencies for LINQ and HTML DSL support.

Connections: Macropy · Github · Syntactic Macros · Metaprogramming · Abstract Syntax Tree

Source: https://github.com/lihaoyi/macropy#case-classes