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/cytoolz/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, isPyPy
+, pytestCheckHook
+, toolz
+, python
+, isPy27
+}:
+
+buildPythonPackage rec {
+  pname = "cytoolz";
+  version = "0.11.2";
+  disabled = isPy27 || isPyPy;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "ea23663153806edddce7e4153d1d407d62357c05120a4e8485bddf1bd5ab22b4";
+  };
+
+  propagatedBuildInputs = [ toolz ];
+
+  # tests are located in cytoolz/tests, however we can't import cytoolz
+  # from $PWD, as it will break relative imports
+  preCheck = ''
+    cd cytoolz
+    export PYTHONPATH=$out/${python.sitePackages}:$PYTHONPATH
+  '';
+
+  checkInputs = [ pytestCheckHook ];
+
+  meta = {
+    homepage = "https://github.com/pytoolz/cytoolz/";
+    description = "Cython implementation of Toolz: High performance functional utilities";
+    license = "licenses.bsd3";
+    maintainers = with lib.maintainers; [ fridh ];
+  };
+}