Zig as a Python Extension Backend: `export fn`, ctypes, cffi, and CPython Boundary Design

A practical two-hour session on Zig as a Python Extension Backend, focused on export fn, ctypes, cffi, and CPython Boundary Design. The session treats Zig as a native component exposed through C-compatible boundaries, with attention to exported symbols, allocators, packaging, host-runtime tests, and failure handling.

Audience: entry-level and intermediate developers who want a practical engineering session, not a language tour.

Outcomes:

• Explain the practical boundaries of Zig as a Python Extension Backend
• Apply export fn in a small working example
• Apply ctypes in a small working example
• Apply cffi in a small working example

Format: two hours with a short framing walkthrough, a concrete example, discussion of tradeoffs, and a closing checklist for practice.