Python 3.14 support: ada-url now requires C++ toolchain where 3.13 used stdlib-only/wheels

[julianhumble1]

Hi, and thanks for Ada and the Python bindings.

When using Python 3.14 with a project that depends on auth0-fastapi-api (which depends on ada-url), installation now fails because ada-url needs a C++ build toolchain. On Python 3.13 and below, installation succeeds without any compiler, presumably because wheels are available for those versions.

Environment / behaviour:

Python 3.14, FastAPI, auth0-fastapi-api from PyPI.

pip install auth0-fastapi-api works on Python 3.13 and below in a clean environment (no compiler).

The same command on Python 3.14 fails while building ada-url, complaining about missing C++ build tools.

Repro:

bash
python3.14 -m venv .venv
source .venv/bin/activate
pip install --upgrade pip
pip install auth0-fastapi-api
Expected: install succeeds without needing a system C++ toolchain (as on <=3.13).
Actual: ada-url build fails on 3.14 due to missing C++ compiler.

I’m happy to provide full logs and environment details if that would help.

[bbayles]

Thanks. I suspect this is because the cibuildwheel version that we're using to create the wheel files doesn't recognize the cp314 pattern. I'll try upgrading.

[julianhumble1]

Thank you so much!

[bbayles]

The wheels should be on PyPI now:
https://pypi.org/project/ada-url/#files