diff --git a/pkgs/development/interpreters/python/mk-python-derivation.nix b/pkgs/development/interpreters/python/mk-python-derivation.nix
index 750f79f40661..b35356d4603b 100644
--- a/pkgs/development/interpreters/python/mk-python-derivation.nix
+++ b/pkgs/development/interpreters/python/mk-python-derivation.nix
@@ -33,20 +33,21 @@ let
   inherit (builtins) unsafeGetAttrPos;
   inherit (lib)
     elem
-    optionalString
-    max
-    stringLength
-    fixedWidthString
-    getName
-    optional
-    optionals
-    optionalAttrs
-    hasSuffix
-    escapeShellArgs
     extendDerivation
+    fixedWidthString
+    flip
+    getName
+    hasSuffix
     head
-    splitString
     isBool
+    max
+    optional
+    optionalAttrs
+    optionals
+    optionalString
+    removePrefix
+    splitString
+    stringLength
     ;
 
   leftPadName =
@@ -65,18 +66,18 @@ let
 
   isMismatchedPython = drv: drv.pythonModule != python;
 
-  withDistOutput' = lib.flip elem [
+  withDistOutput' = flip elem [
     "pyproject"
     "setuptools"
     "wheel"
   ];
 
-  isBootstrapInstallPackage' = lib.flip elem [
+  isBootstrapInstallPackage' = flip elem [
     "flit-core"
     "installer"
   ];
 
-  isBootstrapPackage' = lib.flip elem (
+  isBootstrapPackage' = flip elem (
     [
       "build"
       "packaging"
@@ -88,12 +89,12 @@ let
     ]
   );
 
-  isSetuptoolsDependency' = lib.flip elem [
+  isSetuptoolsDependency' = flip elem [
     "setuptools"
     "wheel"
   ];
 
-  cleanAttrs = lib.flip removeAttrs [
+  cleanAttrs = flip removeAttrs [
     "disabled"
     "checkPhase"
     "checkInputs"
@@ -443,13 +444,13 @@ let
         disabledTests = attrs.disabledTests;
       }
       // optionalAttrs (attrs ? pytestFlags) {
-          pytestFlags = attrs.pytestFlags;
+        pytestFlags = attrs.pytestFlags;
       }
       // optionalAttrs (attrs ? pytestFlagsArray) {
         pytestFlagsArray = attrs.pytestFlagsArray;
       }
       // optionalAttrs (attrs ? unittestFlags) {
-          unittestFlags = attrs.unittestFlags;
+        unittestFlags = attrs.unittestFlags;
       }
       // optionalAttrs (attrs ? unittestFlagsArray) {
         unittestFlagsArray = attrs.unittestFlagsArray;
@@ -463,7 +464,7 @@ let
     drv:
     extendDerivation (
       drv.disabled
-      -> throw "${lib.removePrefix namePrefix drv.name} not supported for interpreter ${python.executable}"
+      -> throw "${removePrefix namePrefix drv.name} not supported for interpreter ${python.executable}"
     ) { } (toPythonModule drv);
 
 in