From 54bea898fa36b27298e9cf80debbd58d67d562e1 Mon Sep 17 00:00:00 2001
From: adisbladis <adisbladis@gmail.com>
Date: Tue, 12 May 2026 16:36:13 +1200
Subject: [PATCH] python3Packages.buildPythonPackage: Don't copy input list
 when checking inputs

---
 .../interpreters/python/mk-python-derivation.nix            | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/interpreters/python/mk-python-derivation.nix b/pkgs/development/interpreters/python/mk-python-derivation.nix
index 6dd3651bfa30..bc44a7de7178 100644
--- a/pkgs/development/interpreters/python/mk-python-derivation.nix
+++ b/pkgs/development/interpreters/python/mk-python-derivation.nix
@@ -48,6 +48,8 @@ let
     optionalString
     removePrefix
     stringLength
+    all
+    seq
     ;
 
   leftPadName =
@@ -263,10 +265,10 @@ lib.extendMkDerivation {
 
           checkDrv =
             attrName: drv:
-            if (isPythonModule drv) && (isMismatchedPython drv) then throwMismatch attrName drv else drv;
+            if isPythonModule drv && isMismatchedPython drv then throwMismatch attrName drv else true;
 
         in
-        attrName: map (checkDrv attrName);
+        attrName: inputs: seq (all (checkDrv attrName) inputs) inputs;
 
       isBootstrapInstallPackage = isBootstrapInstallPackage' (finalAttrs.pname or null);