From 2bfa93e01c1574343236b8d0052ad5e2964a363c Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Sun, 26 Feb 2023 20:26:17 +0000
Subject: [PATCH] treewide: python{ => .pythonForBuild}.interpreter

It won't be enough to fix cross in all cases, but it is in at least
one: pywayland.  I've only made the change in cases I'm confident it's
correct, as it would be wrong to change this when python.interpreter
is used in wrappers, and possibly when it's used for running tests.
---
 doc/languages-frameworks/python.section.md                  | 4 ++--
 pkgs/applications/misc/calibre/default.nix                  | 2 +-
 pkgs/applications/networking/mailreaders/afew/default.nix   | 2 +-
 .../networking/p2p/zeronet-conservancy/default.nix          | 2 +-
 pkgs/applications/networking/p2p/zeronet/default.nix        | 2 +-
 pkgs/applications/office/paperless-ngx/default.nix          | 6 +++---
 pkgs/applications/science/biology/quast/default.nix         | 2 +-
 pkgs/applications/science/logic/z3/default.nix              | 2 +-
 pkgs/development/interpreters/renpy/default.nix             | 4 ++--
 .../libraries/science/chemistry/openmm/default.nix          | 4 ++--
 pkgs/development/python-modules/bash_kernel/default.nix     | 2 +-
 pkgs/development/python-modules/bashlex/default.nix         | 2 +-
 pkgs/development/python-modules/manimpango/default.nix      | 2 +-
 pkgs/development/python-modules/pycuda/default.nix          | 2 +-
 pkgs/development/python-modules/pygame/default.nix          | 2 +-
 pkgs/development/python-modules/pygeos/default.nix          | 5 ++---
 pkgs/development/python-modules/pymunk/default.nix          | 2 +-
 pkgs/development/python-modules/pyqt/4.x.nix                | 2 +-
 pkgs/development/python-modules/pyside2/default.nix         | 2 +-
 pkgs/development/python-modules/pysvn/default.nix           | 4 ++--
 pkgs/development/python-modules/python-efl/default.nix      | 4 ++--
 .../python-modules/python-fontconfig/default.nix            | 2 +-
 pkgs/development/python-modules/pywayland/default.nix       | 2 +-
 pkgs/development/python-modules/pywlroots/default.nix       | 2 +-
 pkgs/development/python-modules/shiboken2/default.nix       | 2 +-
 pkgs/development/python-modules/torch/default.nix           | 2 +-
 pkgs/development/python-modules/wxPython/4.0.nix            | 4 ++--
 pkgs/development/python-modules/wxPython/4.1.nix            | 4 ++--
 pkgs/development/python-modules/wxPython/4.2.nix            | 4 ++--
 pkgs/development/python-modules/xattr/default.nix           | 2 +-
 pkgs/development/python-modules/xkbcommon/default.nix       | 2 +-
 pkgs/development/tools/fdroidserver/default.nix             | 2 +-
 pkgs/development/tools/misc/ycmd/default.nix                | 2 +-
 pkgs/os-specific/linux/libnl/default.nix                    | 2 +-
 pkgs/servers/home-assistant/intents.nix                     | 2 +-
 pkgs/tools/audio/tts/default.nix                            | 2 +-
 pkgs/tools/backup/s3ql/default.nix                          | 2 +-
 37 files changed, 48 insertions(+), 49 deletions(-)

diff --git a/doc/languages-frameworks/python.section.md b/doc/languages-frameworks/python.section.md
index c1945adb1cd3..b44686b8cd54 100644
--- a/doc/languages-frameworks/python.section.md
+++ b/doc/languages-frameworks/python.section.md
@@ -1019,7 +1019,7 @@ buildPythonPackage rec {
 
 The `buildPythonPackage` mainly does four things:
 
-* In the `buildPhase`, it calls `${python.interpreter} setup.py bdist_wheel` to
+* In the `buildPhase`, it calls `${python.pythonForBuild.interpreter} setup.py bdist_wheel` to
   build a wheel binary zipfile.
 * In the `installPhase`, it installs the wheel file using `pip install *.whl`.
 * In the `postFixup` phase, the `wrapPythonPrograms` bash function is called to
@@ -1546,7 +1546,7 @@ of such package using the feature is `pkgs/tools/X11/xpra/default.nix`.
 As workaround install it as an extra `preInstall` step:
 
 ```shell
-${python.interpreter} setup.py install_data --install-dir=$out --root=$out
+${python.pythonForBuild.interpreter} setup.py install_data --install-dir=$out --root=$out
 sed -i '/ = data\_files/d' setup.py
 ```
 
diff --git a/pkgs/applications/misc/calibre/default.nix b/pkgs/applications/misc/calibre/default.nix
index d642a81d2f75..8a031a220068 100644
--- a/pkgs/applications/misc/calibre/default.nix
+++ b/pkgs/applications/misc/calibre/default.nix
@@ -149,7 +149,7 @@ stdenv.mkDerivation rec {
     export XDG_DATA_HOME=$out/share
     export XDG_UTILS_INSTALL_MODE="user"
 
-    ${python3Packages.python.interpreter} setup.py install --root=$out \
+    ${python3Packages.python.pythonForBuild.interpreter} setup.py install --root=$out \
       --prefix=$out \
       --libdir=$out/lib \
       --staging-root=$out \
diff --git a/pkgs/applications/networking/mailreaders/afew/default.nix b/pkgs/applications/networking/mailreaders/afew/default.nix
index bc27b91a97da..ac0687900f17 100644
--- a/pkgs/applications/networking/mailreaders/afew/default.nix
+++ b/pkgs/applications/networking/mailreaders/afew/default.nix
@@ -26,7 +26,7 @@ python3Packages.buildPythonApplication rec {
   outputs = [ "out" "doc" ];
 
   postBuild =  ''
-    ${python3Packages.python.interpreter} setup.py build_sphinx -b html,man
+    ${python3Packages.python.pythonForBuild.interpreter} setup.py build_sphinx -b html,man
   '';
 
   postInstall = ''
diff --git a/pkgs/applications/networking/p2p/zeronet-conservancy/default.nix b/pkgs/applications/networking/p2p/zeronet-conservancy/default.nix
index 75e7981af5b2..e1a2a3826447 100644
--- a/pkgs/applications/networking/p2p/zeronet-conservancy/default.nix
+++ b/pkgs/applications/networking/p2p/zeronet-conservancy/default.nix
@@ -23,7 +23,7 @@ python3Packages.buildPythonApplication rec {
   ];
 
   buildPhase = ''
-    ${python3Packages.python.interpreter} -O -m compileall .
+    ${python3Packages.python.pythonForBuild.interpreter} -O -m compileall .
   '';
 
   installPhase = ''
diff --git a/pkgs/applications/networking/p2p/zeronet/default.nix b/pkgs/applications/networking/p2p/zeronet/default.nix
index 02b0c91e2da9..07ea1707526d 100644
--- a/pkgs/applications/networking/p2p/zeronet/default.nix
+++ b/pkgs/applications/networking/p2p/zeronet/default.nix
@@ -18,7 +18,7 @@ python3Packages.buildPythonApplication rec {
   ];
 
   buildPhase = ''
-    ${python3Packages.python.interpreter} -O -m compileall .
+    ${python3Packages.python.pythonForBuild.interpreter} -O -m compileall .
   '';
 
   installPhase = ''
diff --git a/pkgs/applications/office/paperless-ngx/default.nix b/pkgs/applications/office/paperless-ngx/default.nix
index 61c607c422e8..b27c41581563 100644
--- a/pkgs/applications/office/paperless-ngx/default.nix
+++ b/pkgs/applications/office/paperless-ngx/default.nix
@@ -244,13 +244,13 @@ python.pkgs.buildPythonApplication rec {
   postBuild = ''
     # Compile manually because `pythonRecompileBytecodeHook` only works
     # for files in `python.sitePackages`
-    ${python.interpreter} -OO -m compileall src
+    ${python.pythonForBuild.interpreter} -OO -m compileall src
 
     # Collect static files
-    ${python.interpreter} src/manage.py collectstatic --clear --no-input
+    ${python.pythonForBuild.interpreter} src/manage.py collectstatic --clear --no-input
 
     # Compile string translations using gettext
-    ${python.interpreter} src/manage.py compilemessages
+    ${python.pythonForBuild.interpreter} src/manage.py compilemessages
   '';
 
   installPhase = ''
diff --git a/pkgs/applications/science/biology/quast/default.nix b/pkgs/applications/science/biology/quast/default.nix
index 0a33c9767319..e5ee4b53089f 100644
--- a/pkgs/applications/science/biology/quast/default.nix
+++ b/pkgs/applications/science/biology/quast/default.nix
@@ -27,7 +27,7 @@ pythonPackages.buildPythonApplication rec {
       --replace "/bin/bash" "${bash}/bin/bash"
     mkdir -p "$out/${python.sitePackages}"
     export PYTHONPATH="$out/${python.sitePackages}:$PYTHONPATH"
-    ${python.interpreter} setup.py install \
+    ${python.pythonForBuild.interpreter} setup.py install \
       --install-lib=$out/${python.sitePackages} \
       --prefix="$out"
   '';
diff --git a/pkgs/applications/science/logic/z3/default.nix b/pkgs/applications/science/logic/z3/default.nix
index 9ad48e79c933..f810a5a56739 100644
--- a/pkgs/applications/science/logic/z3/default.nix
+++ b/pkgs/applications/science/logic/z3/default.nix
@@ -47,7 +47,7 @@ let common = { version, sha256, patches ? [ ], tag ? "z3" }:
 
     configurePhase = concatStringsSep " "
       (
-        [ "${python.interpreter} scripts/mk_make.py --prefix=$out" ]
+        [ "${python.pythonForBuild.interpreter} scripts/mk_make.py --prefix=$out" ]
           ++ optional javaBindings "--java"
           ++ optional ocamlBindings "--ml"
           ++ optional pythonBindings "--python --pypkgdir=$out/${python.sitePackages}"
diff --git a/pkgs/development/interpreters/renpy/default.nix b/pkgs/development/interpreters/renpy/default.nix
index d9105ca29238..bee024829cef 100644
--- a/pkgs/development/interpreters/renpy/default.nix
+++ b/pkgs/development/interpreters/renpy/default.nix
@@ -59,14 +59,14 @@ stdenv.mkDerivation rec {
 
   buildPhase = with python3.pkgs; ''
     runHook preBuild
-    ${python.interpreter} module/setup.py build --parallel=$NIX_BUILD_CORES
+    ${python.pythonForBuild.interpreter} module/setup.py build --parallel=$NIX_BUILD_CORES
     runHook postBuild
   '';
 
   installPhase = with python3.pkgs; ''
     runHook preInstall
 
-    ${python.interpreter} module/setup.py install --prefix=$out
+    ${python.pythonForBuild.interpreter} module/setup.py install --prefix=$out
     mkdir -p $out/share/renpy
     cp -vr sdk-fonts gui launcher renpy the_question tutorial renpy.py $out/share/renpy
 
diff --git a/pkgs/development/libraries/science/chemistry/openmm/default.nix b/pkgs/development/libraries/science/chemistry/openmm/default.nix
index 85072f77da12..2ad84249758a 100644
--- a/pkgs/development/libraries/science/chemistry/openmm/default.nix
+++ b/pkgs/development/libraries/science/chemistry/openmm/default.nix
@@ -82,8 +82,8 @@ stdenv.mkDerivation rec {
       export OPENMM_LIB_PATH=$out/lib
       export OPENMM_INCLUDE_PATH=$out/include
       cd python
-      ${python3Packages.python.interpreter} setup.py build
-      ${python3Packages.python.interpreter} setup.py install --prefix=$out
+      ${python3Packages.python.pythonForBuild.interpreter} setup.py build
+      ${python3Packages.python.pythonForBuild.interpreter} setup.py install --prefix=$out
     '';
 
   postFixup = ''
diff --git a/pkgs/development/python-modules/bash_kernel/default.nix b/pkgs/development/python-modules/bash_kernel/default.nix
index ba4672a17746..cee1ee04e353 100644
--- a/pkgs/development/python-modules/bash_kernel/default.nix
+++ b/pkgs/development/python-modules/bash_kernel/default.nix
@@ -43,7 +43,7 @@ buildPythonPackage rec {
   '';
 
   postInstall = ''
-    ${python.interpreter} -m bash_kernel.install --prefix $out
+    ${python.pythonForBuild.interpreter} -m bash_kernel.install --prefix $out
   '';
 
   meta = {
diff --git a/pkgs/development/python-modules/bashlex/default.nix b/pkgs/development/python-modules/bashlex/default.nix
index cb02db36ada1..e1d635c18b69 100644
--- a/pkgs/development/python-modules/bashlex/default.nix
+++ b/pkgs/development/python-modules/bashlex/default.nix
@@ -20,7 +20,7 @@ buildPythonPackage rec {
 
   # workaround https://github.com/idank/bashlex/issues/51
   preBuild = ''
-    ${python.interpreter} -c 'import bashlex'
+    ${python.pythonForBuild.interpreter} -c 'import bashlex'
   '';
 
   nativeCheckInputs = [
diff --git a/pkgs/development/python-modules/manimpango/default.nix b/pkgs/development/python-modules/manimpango/default.nix
index 9b03caa6b103..443415470b05 100644
--- a/pkgs/development/python-modules/manimpango/default.nix
+++ b/pkgs/development/python-modules/manimpango/default.nix
@@ -49,7 +49,7 @@ buildPythonPackage rec {
   '';
 
   preBuild = ''
-    ${python.interpreter} setup.py build_ext --inplace
+    ${python.pythonForBuild.interpreter} setup.py build_ext --inplace
   '';
 
   pythonImportsCheck = [
diff --git a/pkgs/development/python-modules/pycuda/default.nix b/pkgs/development/python-modules/pycuda/default.nix
index e2a41cca4a3a..49fc12e17274 100644
--- a/pkgs/development/python-modules/pycuda/default.nix
+++ b/pkgs/development/python-modules/pycuda/default.nix
@@ -32,7 +32,7 @@ buildPythonPackage rec {
   };
 
   preConfigure = with lib.versions; ''
-    ${python.interpreter} configure.py --boost-inc-dir=${boost.dev}/include \
+    ${python.pythonForBuild.interpreter} configure.py --boost-inc-dir=${boost.dev}/include \
                           --boost-lib-dir=${boost}/lib \
                           --no-use-shipped-boost \
                           --boost-python-libname=boost_python${major python.version}${minor python.version} \
diff --git a/pkgs/development/python-modules/pygame/default.nix b/pkgs/development/python-modules/pygame/default.nix
index 751bb9c8ae94..d89ca3dde700 100644
--- a/pkgs/development/python-modules/pygame/default.nix
+++ b/pkgs/development/python-modules/pygame/default.nix
@@ -52,7 +52,7 @@ buildPythonPackage rec {
   ];
 
   preConfigure = ''
-    ${python.interpreter} buildconfig/config.py
+    ${python.pythonForBuild.interpreter} buildconfig/config.py
   '';
 
   checkPhase = ''
diff --git a/pkgs/development/python-modules/pygeos/default.nix b/pkgs/development/python-modules/pygeos/default.nix
index 67fa2e02aa59..f5e0bf87b1d2 100644
--- a/pkgs/development/python-modules/pygeos/default.nix
+++ b/pkgs/development/python-modules/pygeos/default.nix
@@ -30,8 +30,8 @@ buildPythonPackage rec {
   # for the package to function. Therefore override of buildPhase was
   # necessary.
   buildPhase = ''
-    ${python.interpreter} setup.py build_ext --inplace
-    ${python.interpreter} setup.py bdist_wheel
+    ${python.pythonForBuild.interpreter} setup.py build_ext --inplace
+    ${python.pythonForBuild.interpreter} setup.py bdist_wheel
   '';
 
   nativeCheckInputs = [
@@ -50,4 +50,3 @@ buildPythonPackage rec {
     maintainers = with maintainers; [ nialov ];
   };
 }
-
diff --git a/pkgs/development/python-modules/pymunk/default.nix b/pkgs/development/python-modules/pymunk/default.nix
index e75b4fa3a90f..ab6903b93187 100644
--- a/pkgs/development/python-modules/pymunk/default.nix
+++ b/pkgs/development/python-modules/pymunk/default.nix
@@ -31,7 +31,7 @@ buildPythonPackage rec {
   ];
 
   preBuild = ''
-    ${python.interpreter} setup.py build_ext --inplace
+    ${python.pythonForBuild.interpreter} setup.py build_ext --inplace
   '';
 
   nativeCheckInputs = [
diff --git a/pkgs/development/python-modules/pyqt/4.x.nix b/pkgs/development/python-modules/pyqt/4.x.nix
index 2652b5eb00b3..a0bf3f03f600 100644
--- a/pkgs/development/python-modules/pyqt/4.x.nix
+++ b/pkgs/development/python-modules/pyqt/4.x.nix
@@ -27,7 +27,7 @@ buildPythonPackage rec {
     ''}
 
     chmod +x configure.py
-    sed -i '1i#!${python.interpreter}' configure.py
+    sed -i '1i#!${python.pythonForBuild.interpreter}' configure.py
   '';
 
   configureScript = "./configure.py";
diff --git a/pkgs/development/python-modules/pyside2/default.nix b/pkgs/development/python-modules/pyside2/default.nix
index 2668699aa297..4fa3e757767d 100644
--- a/pkgs/development/python-modules/pyside2/default.nix
+++ b/pkgs/development/python-modules/pyside2/default.nix
@@ -70,7 +70,7 @@ stdenv.mkDerivation rec {
 
   postInstall = ''
     cd ../../..
-    ${python.interpreter} setup.py egg_info --build-type=pyside2
+    ${python.pythonForBuild.interpreter} setup.py egg_info --build-type=pyside2
     cp -r PySide2.egg-info $out/${python.sitePackages}/
   '';
 
diff --git a/pkgs/development/python-modules/pysvn/default.nix b/pkgs/development/python-modules/pysvn/default.nix
index db7848a9282a..33daf6af75df 100644
--- a/pkgs/development/python-modules/pysvn/default.nix
+++ b/pkgs/development/python-modules/pysvn/default.nix
@@ -37,8 +37,8 @@ buildPythonPackage rec {
 
   preConfigure = ''
     cd Source
-    ${python.interpreter} setup.py backport
-    ${python.interpreter} setup.py configure \
+    ${python.pythonForBuild.interpreter} setup.py backport
+    ${python.pythonForBuild.interpreter} setup.py configure \
       --apr-inc-dir=${apr.dev}/include \
       --apu-inc-dir=${aprutil.dev}/include \
       --pycxx-dir=${pycxx.dev}/include \
diff --git a/pkgs/development/python-modules/python-efl/default.nix b/pkgs/development/python-modules/python-efl/default.nix
index 847c167fa20b..046b32c2177a 100644
--- a/pkgs/development/python-modules/python-efl/default.nix
+++ b/pkgs/development/python-modules/python-efl/default.nix
@@ -31,11 +31,11 @@ buildPythonPackage rec {
   '';
 
   preBuild = ''
-    ${python.interpreter} setup.py build_ext
+    ${python.pythonForBuild.interpreter} setup.py build_ext
   '';
 
   installPhase = ''
-    ${python.interpreter} setup.py install --prefix=$out --single-version-externally-managed
+    ${python.pythonForBuild.interpreter} setup.py install --prefix=$out --single-version-externally-managed
   '';
 
   doCheck = false;
diff --git a/pkgs/development/python-modules/python-fontconfig/default.nix b/pkgs/development/python-modules/python-fontconfig/default.nix
index 4aabb208a90c..45c94cdb83b3 100644
--- a/pkgs/development/python-modules/python-fontconfig/default.nix
+++ b/pkgs/development/python-modules/python-fontconfig/default.nix
@@ -17,7 +17,7 @@ in buildPythonPackage rec {
   nativeBuildInputs = [ cython ];
 
   preBuild = ''
-    ${python.interpreter} setup.py build_ext -i
+    ${python.pythonForBuild.interpreter} setup.py build_ext -i
   '';
 
   checkPhase = ''
diff --git a/pkgs/development/python-modules/pywayland/default.nix b/pkgs/development/python-modules/pywayland/default.nix
index f5832449b0d7..2a681c4f4960 100644
--- a/pkgs/development/python-modules/pywayland/default.nix
+++ b/pkgs/development/python-modules/pywayland/default.nix
@@ -24,7 +24,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [ pytestCheckHook ];
 
   postBuild = ''
-    ${python.interpreter} pywayland/ffi_build.py
+    ${python.pythonForBuild.interpreter} pywayland/ffi_build.py
   '';
 
   # Tests need this to create sockets
diff --git a/pkgs/development/python-modules/pywlroots/default.nix b/pkgs/development/python-modules/pywlroots/default.nix
index 2fdf0407c64f..fb03693574a1 100644
--- a/pkgs/development/python-modules/pywlroots/default.nix
+++ b/pkgs/development/python-modules/pywlroots/default.nix
@@ -36,7 +36,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [ pytestCheckHook ];
 
   postBuild = ''
-    ${python.interpreter} wlroots/ffi_build.py
+    ${python.pythonForBuild.interpreter} wlroots/ffi_build.py
   '';
 
   pythonImportsCheck = [ "wlroots" ];
diff --git a/pkgs/development/python-modules/shiboken2/default.nix b/pkgs/development/python-modules/shiboken2/default.nix
index 53ea30ca6823..b736c17337a9 100644
--- a/pkgs/development/python-modules/shiboken2/default.nix
+++ b/pkgs/development/python-modules/shiboken2/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation {
 
   postInstall = ''
     cd ../../..
-    ${python.interpreter} setup.py egg_info --build-type=shiboken2
+    ${python.pythonForBuild.interpreter} setup.py egg_info --build-type=shiboken2
     cp -r shiboken2.egg-info $out/${python.sitePackages}/
     rm $out/bin/shiboken_tool.py
   '';
diff --git a/pkgs/development/python-modules/torch/default.nix b/pkgs/development/python-modules/torch/default.nix
index 86889be4ee16..fe1b005c8e3d 100644
--- a/pkgs/development/python-modules/torch/default.nix
+++ b/pkgs/development/python-modules/torch/default.nix
@@ -219,7 +219,7 @@ in buildPythonPackage rec {
 
   preBuild = ''
     export MAX_JOBS=$NIX_BUILD_CORES
-    ${python.interpreter} setup.py build --cmake-only
+    ${python.pythonForBuild.interpreter} setup.py build --cmake-only
     ${cmake}/bin/cmake build
   '';
 
diff --git a/pkgs/development/python-modules/wxPython/4.0.nix b/pkgs/development/python-modules/wxPython/4.0.nix
index 380fefbc4cd0..64123cafd4a1 100644
--- a/pkgs/development/python-modules/wxPython/4.0.nix
+++ b/pkgs/development/python-modules/wxPython/4.0.nix
@@ -69,11 +69,11 @@ buildPythonPackage rec {
   '';
 
   buildPhase = ''
-    ${python.interpreter} build.py -v --use_syswx dox etg --nodoc sip build_py
+    ${python.pythonForBuild.interpreter} build.py -v --use_syswx dox etg --nodoc sip build_py
   '';
 
   installPhase = ''
-    ${python.interpreter} setup.py install --skip-build --prefix=$out
+    ${python.pythonForBuild.interpreter} setup.py install --skip-build --prefix=$out
   '';
 
   passthru = { wxWidgets = wxGTK; };
diff --git a/pkgs/development/python-modules/wxPython/4.1.nix b/pkgs/development/python-modules/wxPython/4.1.nix
index 3198dbc004c3..4b3e62a2eece 100644
--- a/pkgs/development/python-modules/wxPython/4.1.nix
+++ b/pkgs/development/python-modules/wxPython/4.1.nix
@@ -129,11 +129,11 @@ buildPythonPackage rec {
   '';
 
   buildPhase = ''
-    ${python.interpreter} build.py -v build_wx dox etg --nodoc sip build_py
+    ${python.pythonForBuild.interpreter} build.py -v build_wx dox etg --nodoc sip build_py
   '';
 
   installPhase = ''
-    ${python.interpreter} setup.py install --skip-build --prefix=$out
+    ${python.pythonForBuild.interpreter} setup.py install --skip-build --prefix=$out
     wrapPythonPrograms
   '';
 
diff --git a/pkgs/development/python-modules/wxPython/4.2.nix b/pkgs/development/python-modules/wxPython/4.2.nix
index cd112f8511c3..3d4ddb1e7061 100644
--- a/pkgs/development/python-modules/wxPython/4.2.nix
+++ b/pkgs/development/python-modules/wxPython/4.2.nix
@@ -102,7 +102,7 @@ buildPythonPackage rec {
     export PATH="${wxGTK}/bin:$PATH"
     export SDL_CONFIG="${SDL.dev}/bin/sdl-config"
 
-    ${python.interpreter} build.py -v --use_syswx dox etg sip --nodoc build_py
+    ${python.pythonForBuild.interpreter} build.py -v --use_syswx dox etg sip --nodoc build_py
 
     runHook postBuild
   '';
@@ -111,7 +111,7 @@ buildPythonPackage rec {
   installPhase = ''
     runHook preInstall
 
-    ${python.interpreter} setup.py install --skip-build --prefix=$out
+    ${python.pythonForBuild.interpreter} setup.py install --skip-build --prefix=$out
     wrapPythonPrograms
 
     runHook postInstall
diff --git a/pkgs/development/python-modules/xattr/default.nix b/pkgs/development/python-modules/xattr/default.nix
index fa9620d9dab3..189042082f04 100644
--- a/pkgs/development/python-modules/xattr/default.nix
+++ b/pkgs/development/python-modules/xattr/default.nix
@@ -26,7 +26,7 @@ buildPythonPackage rec {
   doCheck = false;
 
   postBuild = ''
-    ${python.interpreter} -m compileall -f xattr
+    ${python.pythonForBuild.interpreter} -m compileall -f xattr
   '';
 
   pythonImportsCheck = [
diff --git a/pkgs/development/python-modules/xkbcommon/default.nix b/pkgs/development/python-modules/xkbcommon/default.nix
index f9320a4bca00..8bf77c24e3f4 100644
--- a/pkgs/development/python-modules/xkbcommon/default.nix
+++ b/pkgs/development/python-modules/xkbcommon/default.nix
@@ -24,7 +24,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [ pytestCheckHook ];
 
   postBuild = ''
-    ${python.interpreter} xkbcommon/ffi_build.py
+    ${python.pythonForBuild.interpreter} xkbcommon/ffi_build.py
   '';
 
   pythonImportsCheck = [ "xkbcommon" ];
diff --git a/pkgs/development/tools/fdroidserver/default.nix b/pkgs/development/tools/fdroidserver/default.nix
index 07448b21bb80..fd15f24e5390 100644
--- a/pkgs/development/tools/fdroidserver/default.nix
+++ b/pkgs/development/tools/fdroidserver/default.nix
@@ -21,7 +21,7 @@ python.pkgs.buildPythonApplication rec {
   '';
 
   preConfigure = ''
-    ${python.interpreter} setup.py compile_catalog
+    ${python.pythonForBuild.interpreter} setup.py compile_catalog
   '';
 
   postInstall = ''
diff --git a/pkgs/development/tools/misc/ycmd/default.nix b/pkgs/development/tools/misc/ycmd/default.nix
index 3abcfabad779..2d01944dce41 100644
--- a/pkgs/development/tools/misc/ycmd/default.nix
+++ b/pkgs/development/tools/misc/ycmd/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
 
   buildPhase = ''
     export EXTRA_CMAKE_ARGS="-DPATH_TO_LLVM_ROOT=${llvmPackages.libllvm} -DUSE_SYSTEM_ABSEIL=true"
-    ${python.interpreter} build.py --system-libclang --clang-completer --ninja
+    ${python.pythonForBuild.interpreter} build.py --system-libclang --clang-completer --ninja
   '';
 
   dontConfigure = true;
diff --git a/pkgs/os-specific/linux/libnl/default.nix b/pkgs/os-specific/linux/libnl/default.nix
index 08a55134e773..c9eea70db992 100644
--- a/pkgs/os-specific/linux/libnl/default.nix
+++ b/pkgs/os-specific/linux/libnl/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   postBuild = lib.optionalString (pythonSupport) ''
       cd python
-      ${python.interpreter} setup.py install --prefix=../pythonlib
+      ${python.pythonForBuild.interpreter} setup.py install --prefix=../pythonlib
       cd -
   '';
 
diff --git a/pkgs/servers/home-assistant/intents.nix b/pkgs/servers/home-assistant/intents.nix
index 7d46432f3a6b..8c8470113c4c 100644
--- a/pkgs/servers/home-assistant/intents.nix
+++ b/pkgs/servers/home-assistant/intents.nix
@@ -45,7 +45,7 @@ buildPythonPackage rec {
   postInstall = ''
     pushd ..
     # https://github.com/home-assistant/intents/blob/main/script/package#L18
-    ${python.interpreter} -m script.intentfest merged_output $out/${python.sitePackages}/home_assistant_intents/data
+    ${python.pythonForBuild.interpreter} -m script.intentfest merged_output $out/${python.sitePackages}/home_assistant_intents/data
     popd
   '';
 
diff --git a/pkgs/tools/audio/tts/default.nix b/pkgs/tools/audio/tts/default.nix
index cb1880af91c4..8096fc22a2c5 100644
--- a/pkgs/tools/audio/tts/default.nix
+++ b/pkgs/tools/audio/tts/default.nix
@@ -95,7 +95,7 @@ python.pkgs.buildPythonApplication rec {
     # cython modules are not installed for some reasons
     (
       cd TTS/tts/utils/monotonic_align
-      ${python.interpreter} setup.py install --prefix=$out
+      ${python.pythonForBuild.interpreter} setup.py install --prefix=$out
     )
   '';
 
diff --git a/pkgs/tools/backup/s3ql/default.nix b/pkgs/tools/backup/s3ql/default.nix
index 53836da12508..8738f5dc4e24 100644
--- a/pkgs/tools/backup/s3ql/default.nix
+++ b/pkgs/tools/backup/s3ql/default.nix
@@ -18,7 +18,7 @@ python3Packages.buildPythonApplication rec {
   ];
 
   preBuild = ''
-    ${python3Packages.python.interpreter} ./setup.py build_cython build_ext --inplace
+    ${python3Packages.python.pythonForBuild.interpreter} ./setup.py build_cython build_ext --inplace
   '';
 
   checkPhase = ''