diff --git a/pkgs/development/python-modules/pydispatcher/default.nix b/pkgs/development/python-modules/pydispatcher/default.nix
new file mode 100644
index 000000000000..29d464587a0a
--- /dev/null
+++ b/pkgs/development/python-modules/pydispatcher/default.nix
@@ -0,0 +1,28 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, pytest
+}:
+
+buildPythonPackage rec {
+  version = "2.0.5";
+  pname = "pydispatcher";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1bswbmhlbqdxlgbxlb6xrlm4k253sg8nvpl1whgsys8p3fg0cw2m";
+  };
+
+  buildInputs = [ pytest ];
+
+  checkPhase = ''
+    py.test
+  '';
+
+  meta = with stdenv.lib; {
+    homepage = http://pydispatcher.sourceforge.net/;
+    description = "Signal-registration and routing infrastructure for use in multiple contexts";
+    license = licenses.bsd3;
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index a2c04b3929bf..c11a884c3d91 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3295,26 +3295,7 @@ in {
 
   pycurl2 = callPackage ../development/python-modules/pycurl2 { };
 
-  pydispatcher = buildPythonPackage (rec {
-    version = "2.0.5";
-    name = "pydispatcher-${version}";
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/P/PyDispatcher/PyDispatcher-${version}.tar.gz";
-      sha256 = "1bswbmhlbqdxlgbxlb6xrlm4k253sg8nvpl1whgsys8p3fg0cw2m";
-    };
-
-    buildInputs = with self; [ pytest ];
-
-    checkPhase = ''
-      py.test
-    '';
-
-    meta = {
-      homepage = http://pydispatcher.sourceforge.net/;
-      description = "Signal-registration and routing infrastructure for use in multiple contexts";
-      license = licenses.bsd3;
-    };
-   });
+  pydispatcher = callPackage ../development/python-modules/pydispatcher { };
 
   pydot = callPackage ../development/python-modules/pydot { };