Sexp

What problem does it solve?

This Skill provides a Zig-based S-expression engine and KiCad model bindings, exposing them to Python to enable seamless parsing, formatting, and manipulation of KiCad data within Python tooling.

Core Features & Use Cases

• Fast Zig tokenizer, parser, and pretty-printer for S-expressions used in KiCad data.
• Typed KiCad models exposed to Python via the pyzig_sexp extension, enabling Pythonic interaction with PCB, footprint, and schematic data.
• Use Case: Automate validation and transformation of KiCad files in a Python workflow or integrate S-expression tooling into KiCad design pipelines.

Quick Start

from pathlib import Path from faebryk.libs.kicad.fileformats import kicad

pcb = kicad.loads(kicad.pcb.PcbFile, Path("board.kicad_pcb")) _text = kicad.dumps(pcb)