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/py-nightscout/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, aiohttp
+, aioresponses
+, buildPythonPackage
+, fetchFromGitHub
+, pytest-asyncio
+, pytestCheckHook
+, python-dateutil
+, pythonOlder
+, pytz
+}:
+
+buildPythonPackage rec {
+  pname = "py-nightscout";
+  version = "1.3.3";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.8";
+
+  src = fetchFromGitHub {
+    owner = "marciogranzotto";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0kslmm3wrxhm307nqmjmq8i8vy1x6mjaqlgba0hgvisj6b4hx65k";
+  };
+
+  propagatedBuildInputs = [
+    python-dateutil
+    pytz
+    aiohttp
+  ];
+
+  checkInputs = [
+    aioresponses
+    pytestCheckHook
+    pytest-asyncio
+  ];
+
+
+  pythonImportsCheck = [
+    "py_nightscout"
+  ];
+
+  meta = with lib; {
+    description = "Python library that provides an interface to Nightscout";
+    homepage = "https://github.com/marciogranzotto/py-nightscout";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}