diff --git a/pkgs/development/python-modules/python2-pythondialog/default.nix b/pkgs/development/python-modules/python2-pythondialog/default.nix
new file mode 100644
index 00000000000..33e63460d87
--- /dev/null
+++ b/pkgs/development/python-modules/python2-pythondialog/default.nix
@@ -0,0 +1,27 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, isPy3k
+}:
+
+buildPythonPackage rec {
+  pname = "python2-pythondialog";
+  version = "3.3.0";
+  disabled = isPy3k;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1yhkagsh99bfi592ymczf8rnw8rk6n9hdqy3dd98m3yrx8zmjvry";
+  };
+
+  patchPhase = ''
+    substituteInPlace dialog.py --replace ":/bin:/usr/bin" ":$out/bin"
+  '';
+
+  meta = with stdenv.lib; {
+    description = "A Python interface to the UNIX dialog utility and mostly-compatible programs (Python 2 backport)";
+    homepage = "http://pythondialog.sourceforge.net/";
+    license = licenses.lgpl3;
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index f3c49c3159d..9626ef7a9b6 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2274,24 +2274,7 @@ in {
     cudaSupport = false;
   };
 
-  python2-pythondialog = buildPythonPackage rec {
-    name = "python2-pythondialog-${version}";
-    version = "3.3.0";
-    disabled = !isPy27;
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/p/python2-pythondialog/python2-pythondialog-${version}.tar.gz";
-      sha256 = "1yhkagsh99bfi592ymczf8rnw8rk6n9hdqy3dd98m3yrx8zmjvry";
-    };
-
-    patchPhase = ''
-      substituteInPlace dialog.py --replace ":/bin:/usr/bin" ":$out/bin"
-    '';
-
-    meta = with stdenv.lib; {
-      homepage = "http://pythondialog.sourceforge.net/";
-    };
-  };
+  python2-pythondialog = callPackage ../development/python-modules/python2-pythondialog { };
 
   pyRFC3339 = buildPythonPackage rec {
     name = "pyRFC3339-${version}";