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/arpeggio/default.nix

@@ -0,0 +1,32 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "arpeggio";
+  version = "2.0.0";
+
+  src = fetchPypi {
+    pname = "Arpeggio";
+    inherit version;
+    sha256 = "sha256-1rA4OQGbuKaHhfkpLuajaxlU64S5JbhKa4peHibT7T0=";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.cfg \
+      --replace "pytest-runner" ""
+  '';
+
+  checkInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "arpeggio" ];
+
+  meta = with lib; {
+    description = "Recursive descent parser with memoization based on PEG grammars (aka Packrat parser)";
+    homepage = "https://github.com/textX/Arpeggio";
+    license = licenses.mit;
+    maintainers = with maintainers; [ SuperSandro2000 ];
+  };
+}