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/transitions/default.nix

@@ -0,0 +1,51 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pythonAtLeast
+, six
+, pygraphviz
+, pytestCheckHook
+, mock
+, graphviz
+, pycodestyle
+, fontconfig
+}:
+
+buildPythonPackage rec {
+  pname = "transitions";
+  version = "0.8.11";
+  format = "setuptools";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-eyDTKQbqTWDub2wfXcnJ8XiAJCXFsVUhPrDyXCd/BOQ=";
+  };
+
+  propagatedBuildInputs = [
+    six
+    pygraphviz # optional
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+    mock
+    graphviz
+    pycodestyle
+  ];
+
+  preCheck = ''
+    export FONTCONFIG_FILE=${fontconfig.out}/etc/fonts/fonts.conf
+    export HOME=$TMPDIR
+  '';
+
+  pythonImportsCheck = [
+    "transitions"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/pytransitions/transitions";
+    description = "A lightweight, object-oriented finite state machine implementation in Python";
+    license = licenses.mit;
+    maintainers = with maintainers; [ dotlambda ];
+  };
+}