anchor.diff: -{ stdenv, fetchurl, python }:
  +{ stdenv, fetchurl, python, pythonPackages }:
   
   stdenv.mkDerivation rec {
     name = "dstat-0.7.2";
  
positive.code: 
    makeFlags = "prefix=$(out)";
  
    meta = with stdenv.lib; {
      homepage = http://dag.wieers.com/home-made/dstat/;
      description = "Versatile resource statistics tool";
      license = licenses.gpl2;
      platforms = platforms.linux;
      maintainers = with maintainers; [ jgeerds ];
    };
  }
  
negative.code:     sha256 = "1bivnciwlamnl9q6i5ygr7jhs8pp833z2bkbrffvsa60szcqda9l";
    };
  
    buildInputs = with pythonPackages; [ python-wifi wrapPython ];
  
    pythonPath = with pythonPackages; [ python-wifi ];
  
    patchPhase = ''
      sed -i -e 's|/usr/bin/env python|${python}/bin/python|' \
  