# PyPI integration code This code is for integrating with PyPI and other compatible indexes. At the moment we have code for: * Downloading packages using `pip` or `repository_ctx.download`. * Interacting with PyPI compatible indexes via [SimpleAPI] spec. * Locking a `requirements.in` or [PEP621] compliant `pyproject.toml`. [PEP621]: https://peps.python.org/pep-0621/