python-matchit is a Python binding for the matchit Rust library.

matchit is a high-performance URL/path routing library. It builds a radix tree (compressed trie) from route patterns and finds the best match for a given path in logarithmic time. This makes python-matchit a very fast choice for HTTP routers, URL dispatchers, or any task where you need to match many patterns against paths.

Installation

pip install python-matchit

Usage

frommatchitimportRouterrouter=Router[str]()
router.insert("/users/{id}", "test_id")
res=router.at("/users/123")
assertres.value=="test_id"assertres.params== {"id": "123"}
try:
router.at("/noway")
exceptLookupError:
print("Not found as expected")

Router() without type argument also works.

Development

Setup

uv sync

Testing

Build and install the package in editable mode, then run tests:

maturin develop --uv
uv run python test.py

Note: use maturin develop --uv, not uv run maturin develop. The latter runs maturin without telling it to use uv for installation, which may result in a non-editable install.

Updating matchit

To update the underlying Rust matchit library:

1. Check matchit release notes for breaking changes.

2. Update the version in Cargo.toml:

   [dependencies]
   matchit = "0.10.0"

3. Update Cargo.lock:

   cargo update -p matchit

4. Adapt src/lib.rs if the matchit API changed.

5. Rebuild and test:

   maturin develop --uv
   uv run python test.py

Building a release

maturin build --release

The built wheel will be placed in dist/.