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/schedule/default.nix

@@ -0,0 +1,31 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, mock
+}:
+
+buildPythonPackage rec {
+  pname = "schedule";
+  version = "1.1.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "e6ca13585e62c810e13a08682e0a6a8ad245372e376ba2b8679294f377dfc8e4";
+  };
+
+  buildInputs = [ mock ];
+
+  preCheck = ''
+    # https://github.com/dbader/schedule/issues/488
+    substituteInPlace test_schedule.py --replace \
+      "self.assertRaises(ScheduleValueError, every().day.until, datetime.time(hour=5))" \
+      "# self.assertRaises(ScheduleValueError, every().day.until, datetime.time(hour=5))"
+  '';
+
+  meta = with lib; {
+    description = "Python job scheduling for humans";
+    homepage = "https://github.com/dbader/schedule";
+    license = licenses.mit;
+  };
+
+}