anchor.diff:  
     pycharm-community = buildPycharm rec {
       name = "pycharm-community-${version}";
  -    version = "4.5.1";
  -    build = "141.1245";
  +    version = "4.5.2";
  +    build = "141.1580";
       description = "PyCharm Community Edition";
       license = stdenv.lib.licenses.asl20;
       src = fetchurl {
         url = "https://download.jetbrains.com/python/${name}.tar.gz";
  -      sha256 = "1rjl8r863cm7bn3bkp8kbkb9f35rb344pycg5qlvjlvwvp2f448f";
  +      sha256 = "09v1ni06h381y7d5cglifwsz81kln2y4ld7hgpz1sn56fwbi8ld9";
       };
     };
   
     pycharm-professional = buildPycharm rec {
       name = "pycharm-professional-${version}";
  -    version = "4.5.1";
  -    build = "141.1245";
  +    version = "4.5.2";
  +    build = "141.1580";
       description = "PyCharm Professional Edition";
       license = stdenv.lib.licenses.unfree;
       src = fetchurl {
         url = "https://download.jetbrains.com/python/${name}.tar.gz";
  -      sha256 = "1wwyggl6941hd034xfsb3avjgvvah9lh0pdmzlndmvm677cdgzz1";
  +      sha256 = "1dgpzn7wgaxicgw48z83fp462g5mxsr7iwkgp11ffypz93ba2dm7";
       };
     };
   
  
positive.code: 
    webstorm = buildWebStorm rec {
      name = "webstorm-${version}";
      version = "10.0.3";
      build = "141.1237";
      description = "Professional IDE for Web and JavaScript devlopment";
      license = stdenv.lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/webstorm/WebStorm-${version}.tar.gz";
        sha256 = "06m852mbiij2dbmiz5y10bd4mhsdg5dmpy8arg75psl2j354spf8";
      };
    };
  
  
negative.code: 
    clion = buildClion rec {
      name = "clion-${version}";
      version = "1.0.4";
      build = "141.874";
      description  = "C/C++ IDE. New. Intelligent. Cross-platform";
      license = stdenv.lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/cpp/${name}.tar.gz";
        sha256 = "1cz59h2znzjy7zncc049f2w30kc89rvmk7l51a1y6ymf9s7cj4cm";
      };
    };
  
    idea-community = buildIdea rec {
      name = "idea-community-${version}";
      version = "14.1.4";
      build = "IC-141.1532.4";
      description = "Integrated Development Environment (IDE) by Jetbrains, community edition";
      license = stdenv.lib.licenses.asl20;
      src = fetchurl {
        url = "https://download.jetbrains.com/idea/ideaIC-${version}.tar.gz";
        sha256 = "1yx93dfbajk2icm2jkfp5s5jnr1czyk179va3n5zndzzhzags4xx";
      };
    };
  
    idea-ultimate = buildIdea rec {
      name = "idea-ultimate-${version}";
      version = "14.1.4";
      build = "IU-141.1532.4";
      description = "Integrated Development Environment (IDE) by Jetbrains, requires paid license";
      license = stdenv.lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/idea/ideaIU-${version}.tar.gz";
        sha256 = "1hxs0mh35r43iqd1i1s2g1ha91q2wnb6xs95w572khzjm5dznvaw";
      };
    };
  
  