diff --git a/pkgs/development/python-modules/tnefparse/default.nix b/pkgs/development/python-modules/tnefparse/default.nix
new file mode 100644
index 000000000000..0317777cc0fb
--- /dev/null
+++ b/pkgs/development/python-modules/tnefparse/default.nix
@@ -0,0 +1,56 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+
+  setuptools,
+
+  compressed-rtf,
+
+  pytestCheckHook,
+  pytest-console-scripts,
+}:
+
+buildPythonPackage rec {
+  pname = "tnefparse";
+  version = "1.4.0";
+
+  pyproject = true;
+  build-system = [ setuptools ];
+
+  src = fetchFromGitHub {
+    owner = "koodaamo";
+    repo = "tnefparse";
+    tag = version;
+    hash = "sha256-t2ouuuy6fzwb6SZNpxeGSleL/11SgTT8Ce28/ST1glw=";
+  };
+
+  optional-dependencies = {
+    compressed-rtf = [ compressed-rtf ];
+  };
+
+  nativeCheckInputs = [
+    pytestCheckHook
+    pytest-console-scripts
+
+    # tests always require this.
+    compressed-rtf
+  ];
+
+  disabledTests = [
+    # ensures there's a "optional argument" in the CLI usage, and its output has changed since.
+    "test_help_is_printed"
+  ];
+
+  pythonImportsCheck = [ "tnefparse" ];
+
+  meta = {
+    description = "TNEF decoding library written in python, without external dependencies";
+    homepage = "https://github.com/koodaamo/tnefparse";
+    changelog = "https://github.com/koodaamo/tnefparse/releases/tag/${version}";
+    license = lib.licenses.lgpl3Only;
+    maintainers = with lib.maintainers; [
+      flokli
+    ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index d105ed810492..c6ad9a06e110 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -17199,6 +17199,8 @@ self: super: with self; {
 
   tmb = callPackage ../development/python-modules/tmb { };
 
+  tnefparse = callPackage ../development/python-modules/tnefparse { };
+
   todoist = callPackage ../development/python-modules/todoist { };
 
   todoist-api-python = callPackage ../development/python-modules/todoist-api-python { };