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/kafka-python/default.nix

@@ -0,0 +1,29 @@
+{ lib, buildPythonPackage, fetchPypi, pytest, six, mock }:
+
+buildPythonPackage rec {
+  version = "2.0.2";
+  pname = "kafka-python";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "04dfe7fea2b63726cd6f3e79a2d86e709d608d74406638c5da33a01d45a9d7e3";
+  };
+
+  checkInputs = [ pytest six mock ];
+
+  checkPhase = ''
+    py.test
+  '';
+
+  # Upstream uses tox but we don't on Nix. Running tests manually produces however
+  #     from . import unittest
+  # E   ImportError: cannot import name 'unittest'
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Pure Python client for Apache Kafka";
+    homepage = "https://github.com/dpkp/kafka-python";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ ];
+  };
+}