anchor.diff: -{ stdenv, fetchurl, python, zip, makeWrapper
  +{ stdenv, fetchurl, python, zip, makeWrapper, nix, nix-prefetch-scripts
   }:
   
   let
   
  -  version = "1.5.0";
  +  version = "1.6.0";
   
     src = fetchurl {
       url = "https://github.com/garbas/pypi2nix/archive/v${version}.tar.gz";
  -    sha256 = "0s79pp7gkgyk7discnv94m6z81fd67p66rdbd4cwk1ma0qljlh2k";
  +    sha256 = "08iad1ad2gnvsnd66ddw3lff19ms2yly4iq63c8800j603d0pdhn";
     };
   
     click = fetchurl {
  
positive.code:         mv pypi2nix*/src/pypi2nix       $out/pkgs/pypi2nix
        fi
      fi
    '';
  
    commonPhase = ''
  
negative.code:     click
      requests
    ];
    buildInputs = [ python zip makeWrapper nix.out nix-prefetch-scripts ];
    sourceRoot = ".";
  
    postUnpack = ''
  