diff --git a/pkgs/development/python-modules/tunit/default.nix b/pkgs/development/python-modules/tunit/default.nix
new file mode 100644
index 000000000000..b57774181956
--- /dev/null
+++ b/pkgs/development/python-modules/tunit/default.nix
@@ -0,0 +1,47 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromBitbucket,
+  json-handler-registry,
+  pytestCheckHook,
+  pyyaml,
+  setuptools,
+  types-pyyaml,
+}:
+
+buildPythonPackage (finalAttrs: {
+  pname = "tunit";
+  version = "1.7.2";
+  pyproject = true;
+
+  src = fetchFromBitbucket {
+    owner = "massultidev";
+    repo = "tunit";
+    tag = finalAttrs.version;
+    hash = "sha256-S1YEpXQcjQ7gcJPUv4Eo32ypGFkinMjr/x4P/pFMipg=";
+  };
+
+  build-system = [ setuptools ];
+
+  optional-dependencies = {
+    json = [ json-handler-registry ];
+    yaml = [
+      pyyaml
+      types-pyyaml
+    ];
+  };
+
+  nativeCheckInputs = [
+    pytestCheckHook
+  ]
+  ++ lib.flatten (builtins.attrValues finalAttrs.passthru.optional-dependencies);
+
+  pythonImportsCheck = [ "tunit" ];
+
+  meta = {
+    description = "Module for time unit types";
+    homepage = "https://bitbucket.org/massultidev/tunit";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ fab ];
+  };
+})
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 2659c6281b80..758ca1db74b2 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -19854,6 +19854,8 @@ self: super: with self; {
 
   tunigo = callPackage ../development/python-modules/tunigo { };
 
+  tunit = callPackage ../development/python-modules/tunit { };
+
   turnt = callPackage ../development/python-modules/turnt { };
 
   turrishw = callPackage ../development/python-modules/turrishw { };