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/nimfa/default.nix

@@ -0,0 +1,30 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, isPy3k
+, numpy
+, scipy
+, matplotlib
+, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "nimfa";
+  version = "1.4.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "39cff2b86856d03ca8a3d9c38598034ecf1a768c325fd3a728bb9eadb8c6b919";
+  };
+
+  propagatedBuildInputs = [ numpy scipy ];
+  checkInputs = [ matplotlib pytest ];
+  doCheck = !isPy3k;  # https://github.com/marinkaz/nimfa/issues/42
+
+  meta = with lib; {
+    description = "Nonnegative matrix factorization library";
+    homepage = "http://nimfa.biolab.si";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ ashgillman ];
+  };
+}