diff --git a/pkgs/development/python-modules/testscenarios/default.nix b/pkgs/development/python-modules/testscenarios/default.nix
new file mode 100644
index 00000000000..61e2ce5a81e
--- /dev/null
+++ b/pkgs/development/python-modules/testscenarios/default.nix
@@ -0,0 +1,24 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, testtools
+}:
+
+buildPythonPackage rec {
+  pname = "testscenarios";
+  version = "0.4";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1671jvrvqlmbnc42j7pc5y6vc37q44aiwrq0zic652pxyy2fxvjg";
+  };
+
+  propagatedBuildInputs = [ testtools ];
+
+  meta = with stdenv.lib; {
+    description = "A pyunit extension for dependency injection";
+    homepage = https://pypi.python.org/pypi/testscenarios;
+    license = licenses.asl20;
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 8f18de8d29a..75d37d4eef1 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3947,23 +3947,7 @@ in {
 
   terminaltables = callPackage ../development/python-modules/terminaltables { };
 
-  testscenarios = buildPythonPackage rec {
-    name = "testscenarios-${version}";
-    version = "0.4";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/t/testscenarios/${name}.tar.gz";
-      sha256 = "1671jvrvqlmbnc42j7pc5y6vc37q44aiwrq0zic652pxyy2fxvjg";
-    };
-
-    propagatedBuildInputs = with self; [ testtools ];
-
-    meta = {
-      description = "A pyunit extension for dependency injection";
-      homepage = https://pypi.python.org/pypi/testscenarios;
-      license = licenses.asl20;
-    };
-  };
+  testscenarios = callPackage ../development/python-modules/testscenarios { };
 
   testpath = buildPythonPackage rec {
     pname = "testpath";