diff --git a/pkgs/by-name/om/omniorbpy/package.nix b/pkgs/development/python-modules/omniorbpy/default.nix
similarity index 52%
rename from pkgs/by-name/om/omniorbpy/package.nix
rename to pkgs/development/python-modules/omniorbpy/default.nix
index a288dc34c648..c541ddd2ba7d 100644
--- a/pkgs/by-name/om/omniorbpy/package.nix
+++ b/pkgs/development/python-modules/omniorbpy/default.nix
@@ -1,54 +1,58 @@
 {
   lib,
-  stdenv,
+  buildPythonPackage,
   fetchurl,
   omniorb,
   pkg-config,
-  python3,
+  python,
 }:
 
-stdenv.mkDerivation (finalAttrs: {
+buildPythonPackage rec {
   pname = "omniorbpy";
   version = "4.3.2";
+  pyproject = false;
 
   src = fetchurl {
-    url = "http://downloads.sourceforge.net/omniorb/omniORBpy-${finalAttrs.version}.tar.bz2";
+    url = "http://downloads.sourceforge.net/omniorb/omniORBpy-${version}.tar.bz2";
     hash = "sha256-y1cX1BKhAbr0MPWYysfWkjGITa5DctjirfPd7rxffrs=";
   };
 
-  nativeBuildInputs = [
-    pkg-config
+  outputs = [
+    "out"
+    "dev"
   ];
 
-  propagatedBuildInputs = [
-    omniorb
-  ];
+  nativeBuildInputs = [ pkg-config ];
+
+  propagatedBuildInputs = [ omniorb ];
 
   configureFlags = [
     "--with-omniorb=${omniorb}"
     "PYTHON_PREFIX=$out"
-    "PYTHON=${lib.getExe python3}"
+    "PYTHON=${python.interpreter}"
   ];
 
   # Transform omniidl_be into a PEP420 namespace
   postInstall = ''
-    rm $out/${python3.sitePackages}/omniidl_be/__init__.py
-    rm $out/${python3.sitePackages}/omniidl_be/__pycache__/__init__.*.pyc
+    rm $out/${python.sitePackages}/omniidl_be/__init__.py
+    rm $out/${python.sitePackages}/omniidl_be/__pycache__/__init__.*.pyc
   '';
 
   # Ensure both python & cxx backends are available
-  doInstallCheck = true;
-  postInstallCheck = ''
-    export PYTHONPATH=$out/${python3.sitePackages}:${omniorb}/${python3.sitePackages}:$PYTHONPATH
-    ${lib.getExe python3} -c "import omniidl_be.cxx; import omniidl_be.python"
-  '';
-
+  pythonImportsCheck = [
+    "omniidl_be.cxx"
+    "omniidl_be.python"
+    "omniORB"
+  ];
 
   meta = with lib; {
     description = "Python backend for omniorb";
     homepage = "http://omniorb.sourceforge.net";
-    license = with licenses; [ gpl2Plus lgpl21Plus ];
+    license = with licenses; [
+      gpl2Plus
+      lgpl21Plus
+    ];
     maintainers = with maintainers; [ nim65s ];
     platforms = platforms.unix;
   };
-})
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index a9231aecd6e8..32b947ce2e1b 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -9190,6 +9190,8 @@ self: super: with self; {
 
   omnilogic = callPackage ../development/python-modules/omnilogic { };
 
+  omniorbpy = callPackage ../development/python-modules/omniorbpy { };
+
   omorfi = callPackage ../development/python-modules/omorfi { };
 
   omrdatasettools = callPackage ../development/python-modules/omrdatasettools { };