anchor.diff:    };
   
     jmespath = buildPythonPackage rec {
  -    name = "jmespath-0.7.1";
  +    name = "jmespath-0.9.0";
   
       src = pkgs.fetchurl {
         url = "mirror://pypi/j/jmespath/${name}.tar.gz";
  -      sha256 = "1lazbx65imassd7h24z49za001rvx1lmx8r0l21h4izs7pp14nnd";
  +      sha256 = "0g9xvl69y7nr3w7ag4fsp6sm4fqf6vrqjw7504x2hzrrsh3ampq8";
       };
   
       buildInputs = with self; [ nose ];
  
positive.code:   };
  
    s3transfer = buildPythonPackage rec {
      version = "0.0.1"; # This version is required by awscli
      name = "s3transfer-${version}";
  
      src = pkgs.fetchurl {
        url = "mirror://pypi/s/s3transfer/${name}.tar.gz";
        sha256 = "0ma31zvv7gy240xgd1zw853lpzkdci6mapzpg3x4vycann6yvf9b";
      };
  
      foo = 1;
  
negative.code: 
    awscli = buildPythonPackage rec {
      name = "awscli-${version}";
      version = "1.11.10";
  
      namePrefix = "";
  
      src = pkgs.fetchurl {
        url = "mirror://pypi/a/awscli/${name}.tar.gz";
        sha256 = "174lfpai5cga1ml2bwswjil6h544m57js9ki7hqkr9gdbpa8pyrk";
      };
  
      # No tests included
  