uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

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

@@ -0,0 +1,48 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, glibcLocales
+, pytestCheckHook
+, pythonOlder
+, pytz
+, six
+}:
+
+buildPythonPackage rec {
+  pname = "feedgenerator";
+  version = "2.0.0";
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "6836d456b8b0edbc5b6d3a42d1be852cebd43d2f28af4ff51789eb295f1860e2";
+  };
+
+  postPatch = ''
+    sed -i '/cov/d' setup.cfg
+  '';
+
+  buildInputs = [
+    glibcLocales
+  ];
+
+  LC_ALL = "en_US.UTF-8";
+
+  propagatedBuildInputs = [
+    pytz
+    six
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "feedgenerator" ];
+
+  meta = with lib; {
+    description = "Standalone version of Django's feedgenerator module";
+    homepage = "https://github.com/getpelican/feedgenerator";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ ];
+  };
+}