polib: move to own file and fix homepage

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

@@ -0,0 +1,20 @@
+{ stdenv, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  pname = "polib";
+  version = "1.0.4";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "16klwlswfbgmkzrra80fgzhic9447pk3mnr75r2fkz72bkvpcclb";
+  };
+
+  # error: invalid command 'test'
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "A library to manipulate gettext files (po and mo files)";
+    homepage = https://bitbucket.org/izi/polib/;
+    license = licenses.mit;
+  };
+}

pkgs/top-level/python-packages.nix

@@ -12531,25 +12531,7 @@ in {
 
   plumbum = callPackage ../development/python-modules/plumbum { };
 
-
+  polib = callPackage ../development/python-modules/polib {};
-  polib = buildPythonPackage rec {
-    name = "polib-${version}";
-    version = "1.0.4";
-
-    src = pkgs.fetchurl {
-      url = "http://bitbucket.org/izi/polib/downloads/${name}.tar.gz";
-      sha256 = "16klwlswfbgmkzrra80fgzhic9447pk3mnr75r2fkz72bkvpcclb";
-    };
-
-    # error: invalid command 'test'
-    doCheck = false;
-
-    meta = {
-      description = "A library to manipulate gettext files (po and mo files)";
-      homepage = "http://bitbucket.org/izi/polib/";
-      license = licenses.mit;
-    };
-  };
 
   posix_ipc = buildPythonPackage rec {
     name = "posix_ipc-${version}";