diff --git a/pkgs/development/python-modules/pystiebeleltron/default.nix b/pkgs/development/python-modules/pystiebeleltron/default.nix
new file mode 100644
index 000000000000..84ad1e0736be
--- /dev/null
+++ b/pkgs/development/python-modules/pystiebeleltron/default.nix
@@ -0,0 +1,42 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  hatchling,
+  pymodbus,
+  pytestCheckHook,
+  pytest-asyncio,
+  pytest-mock,
+}:
+
+buildPythonPackage rec {
+  pname = "pystiebeleltron";
+  version = "0.2.3";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "ThyMYthOS";
+    repo = "python-stiebel-eltron";
+    tag = "v${version}";
+    hash = "sha256-vJo9fjtbGuWJ1JcK6u0Cnol1Ev3eobD14YjH+S256og=";
+  };
+
+  build-system = [ hatchling ];
+
+  dependencies = [ pymodbus ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+    pytest-asyncio
+    pytest-mock
+  ];
+
+  pythonImportsCheck = [ "pystiebeleltron" ];
+
+  meta = {
+    description = "Python API for interacting with the Stiebel Eltron ISG web gateway via Modbus";
+    homepage = "https://github.com/ThyMYthOS/python-stiebel-eltron";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.jamiemagee ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 39a62538ad78..38975dc8e779 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -14086,6 +14086,8 @@ self: super: with self; {
 
   pystemmer = callPackage ../development/python-modules/pystemmer { };
 
+  pystiebeleltron = callPackage ../development/python-modules/pystiebeleltron { };
+
   pystray = callPackage ../development/python-modules/pystray { };
 
   pysubs2 = callPackage ../development/python-modules/pysubs2 { };