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/datamodeldict/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pythonOlder
+, xmltodict
+}:
+
+buildPythonPackage rec {
+  pname = "datamodeldict";
+  version = "0.9.9";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    pname = "DataModelDict";
+    inherit version;
+    hash = "sha256-DadBRsc8qEu9PWgMNllGS2ESKL7kgBLDhg4yDr87WRk=";
+  };
+
+  propagatedBuildInputs = [
+    xmltodict
+  ];
+
+  # no tests
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "DataModelDict"
+  ];
+
+  meta = with lib; {
+    description = "Class allowing for data models equivalently represented as Python dictionaries, JSON, and XML";
+    homepage = "https://github.com/usnistgov/DataModelDict/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ costrouc ];
+  };
+}