bindings/python/
├── src/                    # Rust source code for Python bindings
│   └── lib.rs              # PyO3 bindings implementation
├── sglang_router/          # Python source code
│   ├── __init__.py
│   ├── version.py
│   ├── launch_server.py
│   ├── launch_router.py
│   ├── router.py
│   ├── router_args.py
│   └── mini_lb.py
├── Cargo.toml              # Rust package configuration for bindings
├── pyproject.toml          # Python package configuration
├── setup.py                # Setup configuration
├── MANIFEST.in             # Package manifest
├── .coveragerc             # Test coverage configuration
└── README.md               # This file

Building

Development Build

# Install maturin
pip install maturin

# Build and install in development mode
cd sgl-router/bindings/python
maturin develop --features vendored-openssl

Production Build

# Build wheel
cd sgl-router/bindings/python
maturin build --release --out dist --features vendored-openssl

# Install the built wheel
pip install dist/sglang_router-*.whl

Testing

# Run Python tests
cd sgl-router
pytest py_test/

Configuration

pyproject.toml: Defines package metadata, dependencies, and build configuration
python-source: Set to "." to indicate Python source is in the same directory as pyproject.toml
module-name: sglang_router.sglang_router_rs - the Rust extension module name

Notes

The Rust bindings source code is located in src/lib.rs
The bindings have their own Cargo.toml in this directory
The main sglang-router library is located in ../../ and is used as a dependency
The package includes both Python code and Rust extensions built with PyO3
PyO3 types are prefixed with Py in Rust but exposed to Python without the prefix using the name attribute