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/wordfreq/default.nix

@@ -0,0 +1,53 @@
+{ lib
+, buildPythonPackage
+, regex
+, langcodes
+, ftfy
+, msgpack
+, mecab-python3
+, jieba
+, pytestCheckHook
+, isPy27
+, fetchFromGitHub
+}:
+
+buildPythonPackage rec {
+  pname = "wordfreq";
+  version = "2.5.1";
+  disabled = isPy27;
+
+   src = fetchFromGitHub {
+    owner = "LuminosoInsight";
+    repo = "wordfreq";
+    rev = "v${version}";
+    sha256 = "1lw7kbsydd89hybassnnhqnj9s5ch9wvgd6pla96198nrq9mj7fw";
+   };
+
+  propagatedBuildInputs = [
+    regex
+    langcodes
+    ftfy
+    msgpack
+    mecab-python3
+    jieba
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py --replace "regex ==" "regex >="
+  '';
+
+  checkInputs = [ pytestCheckHook ];
+  disabledTests = [
+    # These languages require additional dictionaries that aren't packaged
+    "test_languages"
+    "test_japanese"
+    "test_korean"
+  ];
+
+  meta = with lib; {
+    description = "A library for looking up the frequencies of words in many languages, based on many sources of data";
+    homepage =  "https://github.com/LuminosoInsight/wordfreq/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ ixxie ];
+  };
+}