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/bleak/default.nix

@@ -0,0 +1,35 @@
+{ lib, buildPythonPackage, isPy3k, fetchPypi
+, bluez, dbus-next, pytestCheckHook, pytest-cov
+}:
+
+buildPythonPackage rec {
+  pname = "bleak";
+  version = "0.14.3";
+
+  disabled = !isPy3k;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-dg5bsegECH92JXa5uVY9Y7R9UhsWUpiOKMPLXmS2GZA=";
+  };
+
+  postPatch = ''
+    # bleak checks BlueZ's version with a call to `bluetoothctl --version`
+    substituteInPlace bleak/backends/bluezdbus/__init__.py \
+      --replace \"bluetoothctl\" \"${bluez}/bin/bluetoothctl\"
+  '';
+
+  propagatedBuildInputs = [ dbus-next ];
+
+  checkInputs = [ pytestCheckHook pytest-cov ];
+
+  pythonImportsCheck = [ "bleak" ];
+
+  meta = with lib; {
+    description = "Bluetooth Low Energy platform Agnostic Klient for Python";
+    homepage = "https://github.com/hbldh/bleak";
+    license = licenses.mit;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ oxzi ];
+  };
+}