lcompilers/lpython

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1630 stars · 176 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

LPython is an ahead-of-time Python compiler written in C++ that compiles a subset of Python to fast native binaries via LLVM, C, C++, and WASM backends. It focuses on high performance for numerical and array-oriented code, with JIT support and CPython interoperability.

Use cases

• compile python code to fast native binaries
• speed up numerical and array-oriented python code
• transpile python to c++ or fortran
• run python in the browser via wasm
• jit-compile python functions with a decorator
• get better compiler diagnostics for python

When to choose

• you need maximum performance from type-annotated numerical Python code
• you want to compile Python to native binaries or other languages
• you want to experiment with a novel retargetable Python compiler

When to avoid

• you need full Python compatibility including all libraries today
• you need a production-stable toolchain
• your code relies heavily on dynamic Python features not yet supported

Facets

cli-tool · maturity experimental

compiler interpreter developer-tools programming-languages compilers performance developer-tools windows wasm cpp python-compiler ahead-of-time llvm jit high-performance-computing numerical-computing transpiler compiler linux macos

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