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/taskw/default.nix

@@ -0,0 +1,41 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, nose
+, tox
+, six
+, python-dateutil
+, kitchen
+, pytz
+, pkgs
+}:
+
+buildPythonPackage rec {
+  version = "1.3.1";
+  pname = "taskw";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1a68e49cac2d4f6da73c0ce554fd6f94932d95e20596f2ee44a769a28c12ba7d";
+  };
+
+  patches = [ ./use-template-for-taskwarrior-install-path.patch ];
+  postPatch = ''
+    substituteInPlace taskw/warrior.py \
+      --replace '@@taskwarrior@@' '${pkgs.taskwarrior}'
+  '';
+
+  # https://github.com/ralphbean/taskw/issues/98
+  doCheck = false;
+
+  buildInputs = [ nose pkgs.taskwarrior tox ];
+  propagatedBuildInputs = [ six python-dateutil kitchen pytz ];
+
+  meta = with lib; {
+    homepage =  "https://github.com/ralphbean/taskw";
+    description = "Python bindings for your taskwarrior database";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ pierron ];
+  };
+
+}