diff --git a/pkgs/development/python-modules/cmd2-ext-test/default.nix b/pkgs/development/python-modules/cmd2-ext-test/default.nix
new file mode 100644
index 000000000000..4cdf9ccf8dcd
--- /dev/null
+++ b/pkgs/development/python-modules/cmd2-ext-test/default.nix
@@ -0,0 +1,44 @@
+{ lib
+, buildPythonPackage
+, cmd2
+, fetchPypi
+, pytestCheckHook
+, pythonOlder
+, setuptools-scm
+}:
+
+buildPythonPackage rec {
+  pname = "cmd2-ext-test";
+  version = "2.0.0";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-uTc+onurLilwQe0trESR3JGa5WFT1fCt3rRA7rhRpaY=";
+  };
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  propagatedBuildInputs = [
+    cmd2
+  ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "cmd2_ext_test"
+  ];
+
+  meta = with lib; {
+    description = "Plugin supports testing of a cmd2 application";
+    homepage = "https://github.com/python-cmd2/cmd2/tree/master/plugins/ext_test";
+    license = licenses.mit;
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 2b8cc7341e01..2164d244aaea 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1895,6 +1895,8 @@ self: super: with self; {
 
   cmd2 = callPackage ../development/python-modules/cmd2 { };
 
+  cmd2-ext-test = callPackage ../development/python-modules/cmd2-ext-test { };
+
   cmdline = callPackage ../development/python-modules/cmdline { };
 
   cmigemo = callPackage ../development/python-modules/cmigemo {