pythonPackages.cssselect: Move to own file

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

@@ -0,0 +1,17 @@
+{ stdenv, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  pname = "cssselect";
+  version = "0.9.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "10h623qnp6dp1191jri7lvgmnd4yfkl36k9smqklp1qlf3iafd85";
+  };
+
+  # AttributeError: 'module' object has no attribute 'tests'
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+  };
+}

pkgs/top-level/python-packages.nix

@@ -1995,17 +1995,7 @@ in {
     };
   };
 
-
+  cssselect = callPackage ../development/python-modules/cssselect { };
-  cssselect = buildPythonPackage rec {
-    name = "cssselect-${version}";
-    version = "0.9.1";
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/c/cssselect/${name}.tar.gz";
-      sha256 = "10h623qnp6dp1191jri7lvgmnd4yfkl36k9smqklp1qlf3iafd85";
-    };
-    # AttributeError: 'module' object has no attribute 'tests'
-    doCheck = false;
-  };
 
   cssutils = buildPythonPackage (rec {
     name = "cssutils-1.0.1";