pythonPackages.et_xmlfile: refactor move to python-modules

pkgs/development/python-modules/et_xmlfile/default.nix

@@ -0,0 +1,40 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, lxml
+, pytest
+}:
+
+buildPythonPackage rec {
+  version = "1.0.1";
+  pname = "et_xmlfile";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256="0nrkhcb6jdrlb6pwkvd4rycw34y3s931hjf409ij9xkjsli9fkb1";
+  };
+
+  buildInputs = [ lxml pytest ];
+  checkPhase = ''
+    py.test $out
+  '';
+
+  meta = with stdenv.lib; {
+    description = "An implementation of lxml.xmlfile for the standard library";
+    longDescription = ''
+      et_xmlfile is a low memory library for creating large XML files.
+
+      It is based upon the xmlfile module from lxml with the aim of
+      allowing code to be developed that will work with both
+      libraries. It was developed initially for the openpyxl project
+      but is now a standalone module.
+
+      The code was written by Elias Rabel as part of the Python
+      Düsseldorf openpyxl sprint in September 2014.
+    '';
+    homepage = "https://pypi.python.org/pypi/et_xmlfile";
+    license = licenses.mit;
+    maintainers = with maintainers; [ sjourdois ];
+  };
+
+}

pkgs/top-level/python-packages.nix

@@ -2354,37 +2354,7 @@ in {
 
   epc = callPackage ../development/python-modules/epc { };
 
-  et_xmlfile = buildPythonPackage rec {
+  et_xmlfile = callPackage ../development/python-modules/et_xmlfile { };
-    version = "1.0.1";
-    name = "et_xmlfile-${version}";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/e/et_xmlfile/${name}.tar.gz";
-      sha256="0nrkhcb6jdrlb6pwkvd4rycw34y3s931hjf409ij9xkjsli9fkb1";
-    };
-
-    buildInputs = with self; [ lxml pytest ];
-    checkPhase = ''
-      py.test $out
-    '';
-
-    meta = {
-      description = "An implementation of lxml.xmlfile for the standard library";
-      longDescription = ''
-        et_xmlfile is a low memory library for creating large XML files.
-
-        It is based upon the xmlfile module from lxml with the aim of allowing
-        code to be developed that will work with both libraries. It was developed
-        initially for the openpyxl project but is now a standalone module.
-
-        The code was written by Elias Rabel as part of the Python Düsseldorf
-        openpyxl sprint in September 2014.
-      '';
-      homepage = "https://pypi.python.org/pypi/et_xmlfile";
-      license = licenses.mit;
-      maintainers = with maintainers; [ sjourdois ];
-    };
-  };
 
   eventlet = buildPythonPackage rec {
     pname = "eventlet";