diff --git a/pkgs/development/interpreters/python/cpython/default.nix b/pkgs/development/interpreters/python/cpython/default.nix
index 13ede05bf2b72..b0fd13b6a928c 100644
--- a/pkgs/development/interpreters/python/cpython/default.nix
+++ b/pkgs/development/interpreters/python/cpython/default.nix
@@ -152,8 +152,6 @@ let
 
   passthru =
     let
-      # When we override the interpreter we also need to override the spliced versions of the interpreter
-      inputs' = lib.filterAttrs (n: v: n != "passthruFun" && !lib.isDerivation v) inputs;
       # Memoization of the splices to avoid re-evaluating this function for all combinations of splices e.g.
       # python3.pythonOnBuildForHost.pythonOnBuildForTarget == python3.pythonOnBuildForTarget by consuming
       # __splices as an arg and using the cache if populated.
@@ -170,13 +168,9 @@ let
       override =
         attr:
         let
-          python = attr.override (
-            inputs'
-            // {
-              self = python;
-              __splices = splices;
-            }
-          );
+          python = attr.override {
+            self = python;
+          };
         in
         python;
     in