diff --git a/pkgs/development/python-modules/isodate/default.nix b/pkgs/development/python-modules/isodate/default.nix
new file mode 100644
index 00000000000..cc4594e9770
--- /dev/null
+++ b/pkgs/development/python-modules/isodate/default.nix
@@ -0,0 +1,30 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, isPy3k
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "isodate";
+  version = "0.5.4";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "42105c41d037246dc1987e36d96f3752ffd5c0c24834dd12e4fdbe1e79544e31";
+  };
+
+  # Judging from SyntaxError
+  doCheck = !(isPy3k);
+
+  checkPhase = ''
+    ${python.interpreter} -m unittest discover -s src/isodate/tests
+  '';
+
+  meta = with stdenv.lib; {
+    description = "ISO 8601 date/time parser";
+    homepage = http://cheeseshop.python.org/pypi/isodate;
+    license = licenses.bsd0;
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 0616cb16337..5c0bc3f684c 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3606,27 +3606,7 @@ in {
 
   rdflib = callPackage ../development/python-modules/rdflib { };
 
-  isodate = buildPythonPackage rec {
-    name = "isodate-${version}";
-    version = "0.5.4";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/i/isodate/${name}.tar.gz";
-      sha256 = "42105c41d037246dc1987e36d96f3752ffd5c0c24834dd12e4fdbe1e79544e31";
-    };
-
-    # Judging from SyntaxError
-    doCheck = !(isPy3k);
-
-    checkPhase = ''
-      ${python.interpreter} -m unittest discover -s src/isodate/tests
-    '';
-
-    meta = {
-      description = "ISO 8601 date/time parser";
-      homepage = http://cheeseshop.python.org/pypi/isodate;
-    };
-  };
+  isodate = callPackage ../development/python-modules/isodate { };
 
   resampy = buildPythonPackage rec {
     pname = "resampy";