# Notes * [[Python Build Backends]] * [[pyproject.toml build backends]] # Documentation * [pyproject.toml - pip documentation](https://pip.pypa.io/en/stable/reference/build-system/pyproject-toml/) * [license and license-files - Python Packaging User Guide](https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license-and-license-files) for the current guidance on license metadata. # PEPs * [PEP 518 – Specifying Minimum Build System Requirements for Python Projects \| peps.python.org](https://peps.python.org/pep-0518/) * [PEP 625 – Filename of a Source Distribution](https://peps.python.org/pep-0625/) * [PEP 639 – Improving License Clarity with Better Package Metadata](https://peps.python.org/pep-0639/) * [PEP 643 – Metadata for Package Source Distributions](https://peps.python.org/pep-0643/)