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/simplebayes/default.nix

@@ -0,0 +1,36 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, nose
+, mock
+, isPy3k
+}:
+
+buildPythonPackage {
+  pname = "simplebayes";
+  version = "1.5.8";
+
+  # Use GitHub instead of pypi, because it contains tests.
+  src = fetchFromGitHub {
+    repo = "simplebayes";
+    owner = "hickeroar";
+    # NOTE: This is actually 1.5.8 but the tag is wrong!
+    rev = "1.5.7";
+    sha256 = "0mp7rvfdmpfxnka4czw3lv5kkh6gdxh6dm4r6hcln1zzfg9lxp4h";
+  };
+
+  checkInputs = [ nose mock ];
+
+  postPatch = lib.optionalString isPy3k ''
+    sed -i -e 's/open *(\([^)]*\))/open(\1, encoding="utf-8")/' setup.py
+  '';
+
+  checkPhase = "nosetests tests/test.py";
+
+  meta = with lib; {
+    description = "Memory-based naive bayesian text classifier";
+    homepage = "https://github.com/hickeroar/simplebayes";
+    license = licenses.mit;
+  };
+
+}