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/docplex/default.nix

@@ -0,0 +1,34 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, isPy27
+, futures ? null
+, docloud
+, requests
+}:
+
+buildPythonPackage rec {
+  pname = "docplex";
+  version = "2.23.222";
+
+  # No source available from official repo
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-c5XpfEGTkojgzk+ATHCSzzh04zeEVJEEKBp+lPfS+x4=";
+  };
+
+  propagatedBuildInputs = [
+    docloud
+    requests
+  ] ++ lib.optional isPy27 futures;
+
+  doCheck = false;
+  pythonImportsCheck = [ "docplex" ];
+
+  meta = with lib; {
+    description = "IBM Decision Optimization CPLEX Modeling for Python";
+    homepage = "https://onboarding-oaas.docloud.ibmcloud.com/software/analytics/docloud/";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ drewrisinger ];
+  };
+}