pyscriptc

pyscriptc

Compile annotated Python to a native binary. No CPython at runtime.

Quickstart · GitHub · PyPI

What it does

  • Native output: a Python file lowers to a typed IR, then to LLVM, then to a standalone binary. The result has no interpreter inside.
  • Honest fences: anything the subset does not prove is a fence with a diagnostic code (PSxxxx), not a guess.
  • CPython’s own parser: the front end is the ast module, so what parses is what CPython parses.
  • Cross-compile: zig cc as the driver emits binaries for other targets via --target.
  • Zero runtime dependencies: the CLI itself is stdlib-only and ships the C runtime it links.

Try it now

uv tool install pyscriptc
pyscriptc compile examples/sum_squares.py --run --call sum_squares --args '[10]' -o /tmp/sum_squares

That prints 285, the same value CPython returns, from a native binary.

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