self: super: let fallback-git-cache = self.python3Packages.callPackage ({ buildPythonPackage, fetchgit, git, backoff, mypy, }: buildPythonPackage rec { pname = "git-cache"; version = "1.4.2"; src = fetchgit { url = "https://git.scottworley.com/pub/git/git-cache"; rev = "v${version}"; hash = "sha256-Z9daNCmjzaVdeG3mITRWdNM+ewUEcKy5N4/Xpdotsg0="; }; propagatedBuildInputs = [ backoff ]; checkInputs = [ git mypy ]; doCheck = true; checkPhase = "./test.sh"; }) { }; fallback-pinch = self.python3Packages.callPackage ({ buildPythonPackage, fetchgit, nix_2_3, git, makeWrapper, mypy, git-cache, }: buildPythonPackage rec { pname = "pinch"; version = "3.0.10"; src = fetchgit { url = "https://git.scottworley.com/pub/git/pinch"; rev = "v${version}"; hash = "sha256-U3TOTfYvM1ONF9DJrWxfhjVQnY7GD96ru6A2Yj01lcg="; }; buildInputs = [ makeWrapper ]; propagatedBuildInputs = [ git-cache ]; checkInputs = [ nix_2_3 git mypy ]; postInstall = '' wrapProgram "$out/bin/pinch" --prefix PATH : ${nix_2_3}/bin ''; doCheck = true; checkPhase = "./test.sh"; }) { git-cache = self.python3Packages.git-cache or fallback-git-cache; }; in { pinch = super.pinch or fallback-pinch; }