diff --git a/pkgs/development/python-modules/sumtypes/default.nix b/pkgs/development/python-modules/sumtypes/default.nix
new file mode 100644
index 000000000000..4a3a22f2780c
--- /dev/null
+++ b/pkgs/development/python-modules/sumtypes/default.nix
@@ -0,0 +1,23 @@
+{ lib, buildPythonPackage, fetchFromGitHub, attrs, pytestCheckHook }:
+
+buildPythonPackage rec {
+  pname = "sumtypes";
+  version = "0.1a5";
+
+  src = fetchFromGitHub {
+    owner = "radix";
+    repo = "sumtypes";
+    rev = version;
+    sha256 = "0wcw1624xxx2h6lliv13b59blg60j8sgf5v2ni3cwx3j4wld4csr";
+  };
+
+  propagatedBuildInputs = [ attrs ];
+  checkInputs = [ pytestCheckHook ];
+
+  meta = with lib; {
+    description = "Algebraic data types for Python";
+    homepage = "https://github.com/radix/sumtypes";
+    license = licenses.mit;
+    maintainers = with maintainers; [ NieDzejkob ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 125c27dcde8e..be000ecff047 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7009,6 +7009,8 @@ in {
 
   sumo = callPackage ../development/python-modules/sumo { };
 
+  sumtypes = callPackage ../development/python-modules/sumtypes { };
+
   sunpy = callPackage ../development/python-modules/sunpy { };
 
   supervise_api = callPackage ../development/python-modules/supervise_api { };