fixup! fixup! Allow overriding which Python version is used when building the Opsqueue Python library

Author: Qqwy

libs/opsqueue_python/opsqueue_python.nix

@@ -7,7 +7,7 @@
   rustToolchain,
 
   # Native build dependencies:
-  python3,
+  python,
   maturin,
   buildPythonPackage,
   perl,
@@ -38,7 +38,7 @@ let
   commonArgs = {
     inherit src version pname;
     strictDeps = true;
-    nativeBuildInputs = [ python3 ];
+    nativeBuildInputs = [ python ];
     cargoExtraArgs = "--package opsqueue_python";
   };
   cargoArtifacts = craneLib.buildDepsOnly (commonArgs // { pname = pname; });
@@ -50,6 +50,7 @@ let
     (craneLib.buildPackage (commonArgs // { inherit cargoArtifacts; })).overrideAttrs
       (old: {
         nativeBuildInputs = old.nativeBuildInputs ++ [ maturin ];
+        env.PYO3_PYTHON = python.interpreter;
 
         # We intentionally _override_ rather than extend the buildPhase
         # as Maturin itself calls `cargo build`, no need to call it twice.