hy: replace it with python3Packages.hy

Add `hyDefinedPythonPackages` parameter to allow backwards compatibility
with interpreters/hy.

Fixes https://github.com/NixOS/nixpkgs/issues/171428.

pkgs/development/interpreters/hy/builder.nix

@@ -1,40 +0,0 @@
-{ lib
-, python3Packages
-, hyDefinedPythonPackages /* Packages like with python.withPackages */
-, ...
-}:
-python3Packages.buildPythonApplication rec {
-  pname = "hy";
-  version = "1.0a1";
-
-  src = python3Packages.fetchPypi {
-    inherit pname version;
-    sha256 = "sha256-lCrbvbkeutSNmvvn/eHpTnJwPb5aEH7hWTXYSE+AJmU=";
-  };
-
-  checkInputs = with python3Packages; [ flake8 pytest ];
-
-  propagatedBuildInputs = with python3Packages; [
-    appdirs
-    astor
-    clint
-    colorama
-    fastentrypoints
-    funcparserlib
-    rply
-    pygments
-  ] ++ (hyDefinedPythonPackages python3Packages);
-
-  # Hy does not include tests in the source distribution from PyPI, so only test executable.
-  checkPhase = ''
-    $out/bin/hy --help > /dev/null
-  '';
-
-  meta = with lib; {
-    description = "A LISP dialect embedded in Python";
-    homepage = "https://hylang.org/";
-    license = licenses.mit;
-    maintainers = with maintainers; [ nixy mazurel ];
-    platforms = platforms.all;
-  };
-}

pkgs/development/interpreters/hy/default.nix

@@ -1,15 +0,0 @@
-{ lib
-, callPackage
-, hyDefinedPythonPackages ? python-packages: [] /* Packages like with python.withPackages */
-}:
-let
-  withPackages = (
-    python-packages: callPackage ./builder.nix {
-      hyDefinedPythonPackages = python-packages;
-    }
-  );
-in
-(withPackages hyDefinedPythonPackages) // {
-  # Export withPackages function for hy customization
-  inherit withPackages;
-}

pkgs/development/python-modules/hy/default.nix

@@ -5,8 +5,10 @@
 , fetchFromGitHub
 , funcparserlib
 , pytestCheckHook
+, python
 , pythonOlder
 , rply
+, hyDefinedPythonPackages ? python-packages: [] /* Packages like with python.withPackages */
 }:
 
 buildPythonPackage rec {
@@ -27,9 +29,13 @@ buildPythonPackage rec {
     colorama
     funcparserlib
     rply # TODO: remove on the next release
-  ] ++ lib.optionals (pythonOlder "3.9") [
+  ]
+  ++ lib.optionals (pythonOlder "3.9") [
     astor
-  ];
+  ]
+  # for backwards compatibility with removed pkgs/development/interpreters/hy
+  # See: https://github.com/NixOS/nixpkgs/issues/171428
+  ++ (hyDefinedPythonPackages python.pkgs);
 
   checkInputs = [
     pytestCheckHook
@@ -48,6 +54,6 @@ buildPythonPackage rec {
     description = "Python to/from Lisp layer";
     homepage = "https://github.com/hylang/hy";
     license = licenses.mit;
-    maintainers = with maintainers; [ fab thiagokokada ];
+    maintainers = with maintainers; [ fab mazurel nixy thiagokokada ];
   };
 }

pkgs/top-level/all-packages.nix

@@ -35047,7 +35047,7 @@ with pkgs;
 
   simplenote = callPackage ../applications/misc/simplenote { };
 
-  hy = callPackage ../development/interpreters/hy {};
+  hy = with python3Packages; toPythonApplication hy;
 
   wmic-bin = callPackage ../servers/monitoring/plugins/wmic-bin.nix { };