diff --git a/pkgs/top-level/release-python.nix b/pkgs/top-level/release-python.nix
index bc54860d45f6..81ea4d3403a7 100644
--- a/pkgs/top-level/release-python.nix
+++ b/pkgs/top-level/release-python.nix
@@ -21,10 +21,15 @@
   }; }
 }:
 
-with import ./release-lib.nix {inherit supportedSystems nixpkgsArgs; };
-with lib;
-
 let
+  release-lib = import ./release-lib.nix {
+    inherit supportedSystems nixpkgsArgs;
+  };
+
+  inherit (release-lib) mapTestOn pkgs;
+
+  inherit (release-lib.lib) isDerivation mapAttrs optionals;
+
   packagePython = mapAttrs (name: value:
     let res = builtins.tryEval (
       if isDerivation value then
@@ -33,7 +38,7 @@ let
         packagePython value
       else
         []);
-    in lib.optionals res.success res.value
+    in optionals res.success res.value
     );
 
   jobs = {