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.

36 files changed, 46 insertions, 47 deletions

diff --git a/pkgs/applications/misc/calibre/default.nix b/pkgs/applications/misc/calibre/default.nix
index d642a81d2f7..8a031a22006 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 bc27b91a97d..ac0687900f1 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 75e7981af5b..e1a2a382644 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 02b0c91e2da..07ea1707526 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 61c607c422e..b27c4158156 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 0a33c976731..e5ee4b53089 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 9ad48e79c93..f810a5a5673 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 d9105ca2923..bee024829ce 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 85072f77da1..2ad84249758 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 ba4672a1774..cee1ee04e35 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 cb02db36ada..e1d635c18b6 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 9b03caa6b10..443415470b0 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 e2a41cca4a3..49fc12e1727 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 751bb9c8ae9..d89ca3dde70 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 67fa2e02aa5..f5e0bf87b1d 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 e75b4fa3a90..ab6903b9318 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 2652b5eb00b..a0bf3f03f60 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 2668699aa29..4fa3e757767 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 db7848a9282..33daf6af75d 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 847c167fa20..046b32c2177 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 4aabb208a90..45c94cdb83b 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 f5832449b0d..2a681c4f496 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 2fdf0407c64..fb03693574a 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 53ea30ca682..b736c17337a 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 86889be4ee1..fe1b005c8e3 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 380fefbc4cd..64123cafd4a 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 3198dbc004c..4b3e62a2eec 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 cd112f8511c..3d4ddb1e706 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 fa9620d9dab..189042082f0 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 f9320a4bca0..8bf77c24e3f 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 07448b21bb8..fd15f24e539 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 3abcfabad77..2d01944dce4 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 08a55134e77..c9eea70db99 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 7d46432f3a6..8c8470113c4 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 cb1880af91c..8096fc22a2c 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 53836da1250..8738f5dc4e2 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 = ''