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/pypinyin/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "pypinyin";
+  version = "0.46.0";
+
+  src = fetchFromGitHub {
+    owner = "mozillazg";
+    repo = "python-pinyin";
+    rev = "v${version}";
+    sha256 = "sha256-KPyFvO6TR0mg09xcraHFaWklJgzF5oqk3d8H+G4gh3I=";
+  };
+
+  postPatch = ''
+    substituteInPlace pytest.ini --replace \
+      "--cov-report term-missing" ""
+  '';
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pytestFlagsArray = [
+    "tests"
+  ];
+
+  meta = with lib; {
+    description = "Chinese Characters to Pinyin - 汉字转拼音";
+    homepage = "https://github.com/mozillazg/python-pinyin";
+    changelog = "https://github.com/mozillazg/python-pinyin/blob/master/CHANGELOG.rst";
+    license = licenses.mit;
+    maintainers = teams.tts.members;
+  };
+}