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Nix Packages collection & NixOS github.com/NixOS/nixpkgs
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12345678910111213141516171819202122from packaging.version import InvalidVersion, parse, Versionfrom sys import argv, exit
derivation_pname = argv[1]derivation_version = argv[2]metadata_version = argv[3]
if 'unstable-' not in derivation_version: try: parse(derivation_version) except InvalidVersion as e: print(e) print('Make sure you follow https://github.com/NixOS/nixpkgs/blob/master/pkgs/README.md#versioning.') exit(1)
if Version(derivation_version) != Version(metadata_version): print(f"The '{derivation_pname}' derivation has version '{derivation_version}' but .dist-info/METADATA specifies version '{metadata_version}'.") print('This usually means that the wrong version is hardcoded in pyproject.toml or setup.{py,cfg}.') print("Use the pyprojectVersionPatchHook or patch the version manually so that the project metadata matches the derivation's version.") exit(1)