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/mpd2/default.nix

@@ -0,0 +1,33 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pythonOlder
+, python
+, mock
+}:
+
+buildPythonPackage rec {
+  pname = "python-mpd2";
+  version = "3.0.5";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-bxv/2TuaMvwBipu/NIdQW1Lg11fsNAZpBcYKkS1JI4Q=";
+  };
+
+  buildInputs = [ mock ];
+
+  checkPhase = ''
+    ${python.interpreter} -m unittest mpd.tests
+  '';
+
+  meta = with lib; {
+    description = "A Python client module for the Music Player Daemon";
+    homepage = "https://github.com/Mic92/python-mpd2";
+    license = licenses.lgpl3Plus;
+    maintainers = with maintainers; [ rvl mic92 hexa ];
+  };
+
+}