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/python-memcached/default.nix

@@ -0,0 +1,40 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, six
+, mock
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "python-memcached";
+  version = "1.59";
+
+  src = fetchFromGitHub {
+    owner = "linsomniac";
+    repo = "python-memcached";
+    rev = version;
+    hash = "sha256-tHqkwNloPTXOrEGtuDLu1cTw4SKJ4auv8UUbqdNp698=";
+  };
+
+  propagatedBuildInputs = [
+    six
+  ];
+
+  checkInputs = [
+    mock
+    pytestCheckHook
+  ];
+
+  # all tests fail
+  doCheck = false;
+
+  pythonImportsCheck = [ "memcache" ];
+
+  meta = with lib; {
+    description = "Pure python memcached client";
+    homepage = "https://github.com/linsomniac/python-memcached";
+    license = licenses.psfl;
+    maintainers = with maintainers; [ dotlambda ];
+  };
+}