diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 4ee2c935fa0a..358d90591faf 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -53,25 +53,6 @@ pythonPackages = modules // import ./python-packages-generated.nix {
     inherit python setuptools;
   };
 
-  pypi2nix = buildPythonPackage rec {
-    rev = "e231db7e8874d4543a6f0fffc46c0fffbe6108c5";
-    name = "pypi2nix-1.0_${rev}";
-
-    src = fetchurl {
-      url = "https://github.com/garbas/pypi2nix/tarball/${rev}";
-      name = "${name}.tar.bz";
-      sha256 = "0wqk6milnagr0b0v8igjp8p25d5y63pki3pkdy7hbgjxvyw8wril";
-    };
-
-    propagatedBuildInputs = [ pythonPackages."Distutils2-1.0a4" ];
-    doCheck = false;
-
-    meta = {
-      homepage = https://github.com/garbas/pypi2nix;
-      description = "";
-      maintainers = [ stdenv.lib.maintainers.garbas ];
-    };
-  };
   # packages defined elsewhere
 
   blivet = callPackage ../development/python-modules/blivet { };
@@ -6987,4 +6968,27 @@ pythonPackages = modules // import ./python-packages-generated.nix {
     };
  };
 
+# python2.7 specific eggs
+} // pkgs.lib.optionalAttrs (python.majorVersion == "2.7") {
+
+  pypi2nix = pythonPackages.buildPythonPackage rec {
+    rev = "e231db7e8874d4543a6f0fffc46c0fffbe6108c5";
+    name = "pypi2nix-1.0_${rev}";
+
+    src = pkgs.fetchurl {
+      url = "https://github.com/garbas/pypi2nix/tarball/${rev}";
+      name = "${name}.tar.bz";
+      sha256 = "0wqk6milnagr0b0v8igjp8p25d5y63pki3pkdy7hbgjxvyw8wril";
+    };
+
+    propagatedBuildInputs = [ pythonPackages."Distutils2-1.0a4" ];
+    doCheck = false;
+
+    meta = {
+      homepage = https://github.com/garbas/pypi2nix;
+      description = "";
+      maintainers = [ pkgs.stdenv.lib.maintainers.garbas ];
+    };
+  };
+
 }; in pythonPackages