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/dpath/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, hypothesis
+, isPy27
+, mock
+, nose
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "dpath";
+  version = "2.0.6";
+
+  disabled = isPy27; # uses python3 imports
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-Wh3a5SIz+8jvgbFfuFBzqBEmu0NpjT86G2qvVhpGzcA=";
+  };
+
+  # use pytest as nosetests hangs
+  checkInputs = [
+    hypothesis
+    mock
+    nose
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "dpath" ];
+
+  meta = with lib; {
+    description = "Python library for accessing and searching dictionaries via /slashed/paths ala xpath";
+    homepage = "https://github.com/akesterson/dpath-python";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ mmlb ];
+  };
+}