diff --git a/pkgs/development/python-modules/dlms-cosem/default.nix b/pkgs/development/python-modules/dlms-cosem/default.nix
new file mode 100644
index 000000000000..e6040fb7860a
--- /dev/null
+++ b/pkgs/development/python-modules/dlms-cosem/default.nix
@@ -0,0 +1,51 @@
+{ lib
+, asn1crypto
+, attrs
+, buildPythonPackage
+, cryptography
+, fetchFromGitHub
+, pyserial
+, pytestCheckHook
+, python-dateutil
+, pythonOlder
+, typing-extensions
+}:
+
+buildPythonPackage rec {
+  pname = "dlms-cosem";
+  version = "21.3.2";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "pwitab";
+    repo = pname;
+    rev = "refs/tags/${version}";
+    sha256 = "sha256-BrLanP+SIRRof15yzqwcDOxw92phbW7m9CfORz0xo7I=";
+  };
+
+  propagatedBuildInputs = [
+    asn1crypto
+    attrs
+    cryptography
+    pyserial
+    python-dateutil
+    typing-extensions
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "dlms_cosem"
+  ];
+
+  meta = with lib; {
+    description = "Python module to parse DLMS/COSEM";
+    homepage = "https://github.com/pwitab/dlms-cosem";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 04c9ec2047cb..c4714ffe9a52 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2620,6 +2620,8 @@ self: super: with self; {
 
   dlinfo = callPackage ../development/python-modules/dlinfo { };
 
+  dlms-cosem = callPackage ../development/python-modules/dlms-cosem { };
+
   dlx = callPackage ../development/python-modules/dlx { };
 
   dmenu-python = callPackage ../development/python-modules/dmenu { };