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/vcrpy/default.nix

@@ -0,0 +1,51 @@
+{ buildPythonPackage
+, lib
+, isPy27
+, six
+, fetchPypi
+, pyyaml
+, mock
+, contextlib2
+, wrapt
+, pytest
+, pytest-httpbin
+, yarl
+, pythonOlder
+, pythonAtLeast
+}:
+
+buildPythonPackage rec {
+  pname = "vcrpy";
+  version = "4.1.1";
+
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "57095bf22fc0a2d99ee9674cdafebed0f3ba763018582450706f7d3a74fff599";
+  };
+
+  checkInputs = [
+    pytest
+    pytest-httpbin
+  ];
+
+  propagatedBuildInputs = [
+    pyyaml
+    wrapt
+    six
+  ]
+  ++ lib.optionals (pythonOlder "3.3") [ contextlib2 mock ]
+  ++ lib.optionals (pythonAtLeast "3.4") [ yarl ];
+
+  checkPhase = ''
+    py.test --ignore=tests/integration -k "not TestVCRConnection"
+  '';
+
+  meta = with lib; {
+    description = "Automatically mock your HTTP interactions to simplify and speed up testing";
+    homepage = "https://github.com/kevin1024/vcrpy";
+    license = licenses.mit;
+  };
+}
+