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/packet-python/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, requests
+, python
+
+# For tests/setup.py
+, pytest
+, pytest-runner
+, requests-mock
+}:
+
+buildPythonPackage rec {
+  pname = "packet-python";
+  version = "1.44.2";
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "4ce0827bc41d5bf5558284c18048344343f7c4c6e280b64bbe53fb51ab454892";
+  };
+  nativeBuildInputs = [ pytest-runner ];
+  propagatedBuildInputs = [ requests ];
+  checkInputs = [
+    pytest
+    pytest-runner
+    requests-mock
+  ];
+
+  checkPhase = ''
+    ${python.interpreter} setup.py test
+  '';
+
+  meta = {
+    description = "A Python client for the Packet API.";
+    homepage    = "https://github.com/packethost/packet-python";
+    license     = lib.licenses.lgpl3;
+    maintainers = with lib.maintainers; [ dipinhora ];
+  };
+}