{ nixpkgs, python_version, }: let # Define required nixpkgs python builders lib = { buildEnv = nixpkgs."${python_version}".buildEnv.override; inherit (nixpkgs."${python_version}".pkgs) buildPythonPackage toPythonApplication; inherit (nixpkgs.python3Packages) fetchPypi; }; # Define the nixpkgs python packages overrides python_pkgs = nixpkgs."${python_version}Packages"; in { inherit lib python_pkgs; }