diff --git a/pkgs/top-level/release.nix b/pkgs/top-level/release.nix
index f59b2debe86c..e73f6f4f1129 100644
--- a/pkgs/top-level/release.nix
+++ b/pkgs/top-level/release.nix
@@ -108,24 +108,6 @@ let
       #rPackages = packagePlatforms pkgs.rPackages;
       ocamlPackages = { };
       perlPackages = { };
-      pythonPackages = {
-        blaze = unix;
-        pandas = unix;
-        scikitlearn = unix;
-      };
-      python2Packages = { };
-      python27Packages = { };
-      python3Packages = { };
-      python35Packages = {
-        blaze = unix;
-        pandas = unix;
-        scikitlearn = unix;
-      };
-      python36Packages = {
-        blaze = unix;
-        pandas = unix;
-        scikitlearn = unix;
-      };
 
       # hack around broken eval of non-linux packages for now.
       tests.macOSSierraShared = darwin;