| # `pep517_backend` in-tree build backend | |
| The `pep517_backend.hooks` importable exposes callables declared by PEP 517 | |
| and PEP 660 and is integrated into `pyproject.toml`'s | |
| `[build-system].build-backend` through `[build-system].backend-path`. | |
| # Design considerations | |
| `__init__.py` is to remain empty, leaving `hooks.py` the only entrypoint | |
| exposing the callables. The logic is contained in private modules. This is | |
| to prevent import-time side effects. | |