anchor.diff:      };
     };
   
  +  rtslib_fb = buildPythonPackage rec {
  +    version = "2.1.fb43";
  +    name = "rtslib-fb-${version}";
  +
  +    src = fetchurl {
  +      url = "https://github.com/agrover/rtslib-fb/archive/v${version}.tar.gz";
  +      sha256 = "1b59vyy12g6rix9l2fxx0hjiq33shkb79v57gwffs57vh74wc53v";
  +    };
  +
  +    meta = {
  +      description = "A Python object API for managing the Linux LIO kernel target";
  +      homepage = "https://github.com/agrover/rtslib-fb";
  +      platforms = stdenv.lib.platforms.linux;
  +    };
  +  };
   
     seqdiag = buildPythonPackage rec {
       name = "seqdiag-0.9.0";
  
positive.code:   #
    #   doCheck = false;
    # };
  
    taskcoach = buildPythonPackage rec {
      name = "TaskCoach-1.3.22";
  
negative.code:   });
  
  
    configshell_fb = buildPythonPackage rec {
      version = "1.1.fb10";
      name = "configshell-fb-${version}";
  
      src = fetchurl {
        url = "https://github.com/agrover/configshell-fb/archive/v${version}.tar.gz";
        sha256 = "1dd87xvm98nk3jzybb041gjdahi2z9b53pwqhyxcfj4a91y82ndy";
      };
      
      propagatedBuildInputs = [
        pyparsing
        modules.readline
        urwid
      ];
  
      meta = {
        description = "A Python library for building configuration shells";
        homepage = "https://github.com/agrover/configshell-fb";
        platforms = stdenv.lib.platforms.linux;
      };
    };
  
  
    construct = buildPythonPackage rec {
      name = "construct-2.5.1";
  
  