Move namePrefix="" python packages out of python-packges.nix

It doesn't make sense to build tools/applications with three different
python interpreter versions, so move them out of python modules list.

Also reverts 53ffc6e0ef.

pkgs/development/python-modules/pylint/default.nix

@@ -0,0 +1,23 @@
+{ stdenv, fetchurl, pythonPackages }:
+
+pythonPackages.buildPythonPackage rec {
+  name = "pylint-0.26.0";
+  namePrefix = "";
+
+  src = fetchurl {
+    url = "http://download.logilab.org/pub/pylint/${name}.tar.gz";
+    sha256 = "1mg1ywpj0klklv63s2hwn5xwxi3wfwgnyz9d4pz32hzb53azq835";
+  };
+
+  propagatedBuildInputs = [ pythonPackages.logilab_astng ];
+
+  postInstall = ''
+    mkdir -p $out/share/emacs/site-lisp
+    cp "elisp/"*.el $out/share/emacs/site-lisp/
+  '';
+
+  meta = {
+    homepage = http://www.logilab.org/project/pylint;
+    description = "A bug and style checker for Python";
+  };
+}

pkgs/development/python-modules/rbtools/default.nix

@@ -0,0 +1,13 @@
+{ stdenv, fetchurl, pythonPackages }:
+
+pythonPackages.buildPythonPackage rec {
+  name = "rbtools-0.4.1";
+  namePrefix = "";
+
+  src = fetchurl {
+    url = "http://downloads.reviewboard.org/releases/RBTools/0.4/RBTools-0.4.1.tar.gz";
+    sha256 = "1v0r7rfzrasj56s53mib51wl056g7ykh2y1c6dwv12r6hzqsycgv";
+  };
+
+  propagatedBuildInputs = [ pythonPackages.setuptools ];
+}

pkgs/development/python-modules/setuptools/default.nix

@@ -34,9 +34,10 @@ stdenv.mkDerivation rec {
     ${python}/bin/${python.executable} setup.py test
   '';
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "Utilities to facilitate the installation of Python packages";
     homepage = http://pypi.python.org/pypi/setuptools;
     licenses = [ "PSF" "ZPL" ];
+    platforms = platforms.all;
   };    
 }