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/dask-yarn/default.nix

@@ -0,0 +1,49 @@
+{ stdenv
+, lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+, pythonOlder
+, distributed
+, dask
+, grpcio
+, skein
+}:
+
+buildPythonPackage rec {
+  pname = "dask-yarn";
+  version = "0.9";
+
+  src = fetchFromGitHub {
+    owner = "dask";
+    repo = pname;
+    rev = version;
+    hash = "sha256-/BTsxQSiVQrihrCa9DE7pueyg3aPAdjd/Dt4dpUwdtM=";
+  };
+
+  propagatedBuildInputs = [
+    distributed
+    dask
+    grpcio
+    skein
+  ];
+
+  checkInputs = [ pytestCheckHook ];
+  preCheck = ''
+    export HOME=$TMPDIR
+  '';
+  pythonImportsCheck = [ "dask_yarn" ];
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = "Deploy dask on YARN clusters";
+    longDescription = ''Dask-Yarn deploys Dask on YARN clusters,
+      such as are found in traditional Hadoop installations.
+      Dask-Yarn provides an easy interface to quickly start,
+      stop, and scale Dask clusters natively from Python.
+    '';
+    homepage = "https://yarn.dask.org/";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ illustris ];
+  };
+}