anchor.diff:      future pygments mccabe deprecation
     ];
   
  -  preCheck = ''
  +  checkPhase = ''
       export HOME="$TMP/conan-home"
       mkdir -p "$HOME"
  +    nosetests conans.test
     '';
   
     meta = with lib; {
  
positive.code: { lib, python }:
  
  let newPython = python.override {
    packageOverrides = self: super: {
      distro = super.distro.overridePythonAttrs (oldAttrs: rec {
        version = "1.1.0";
  
negative.code:         sha256 = "1080pdxrvnkr8i7b7bk0dfx6cwrkkzzfaranl7207q6rdybzqay3";
        };
      });
      astroid = super.astroid.overridePythonAttrs (oldAttrs: rec {
        version = "1.6.5";
        src = oldAttrs.src.override {
          inherit version;
          sha256 = "fc9b582dba0366e63540982c3944a9230cbc6f303641c51483fa547dcc22393a";
        };
      });
      pylint = super.pylint.overridePythonAttrs (oldAttrs: rec {
        version = "1.8.4";
        src = oldAttrs.src.override {
          inherit version;
          sha256 = "34738a82ab33cbd3bb6cd4cef823dbcabdd2b6b48a4e3a3054a2bbbf0c712be9";
        };
  
      });
    };
  };
  
  in newPython.pkgs.buildPythonApplication rec {
    version = "1.6.0";
    pname = "conan";
  
    src = newPython.pkgs.fetchPypi {
      inherit pname version;
      sha256 = "386476d3af1fa390e4cd96e737876e7d1f1c0bca09519e51fd44c1bb45990caa";
    };
  
    # Bump PyYAML to 3.13
    patches = fetchpatch {
      url = https://github.com/conan-io/conan/commit/9d3d7a5c6e89b3aa321735557e5ad3397bb80568.patch;
      sha256 = "1qdy6zj3ypl1bp9872mzaqg1gwigqldxb1glvrkq3p4za62p546k";
    };
  
    checkInputs = [
      git
    ] ++ (with newPython.pkgs; [
      nose
      parameterized
      mock
      webtest
      codecov
    ]);
  
    propagatedBuildInputs = with newPython.pkgs; [
      requests fasteners pyyaml pyjwt colorama patch
  