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/dropbox/default.nix

@@ -0,0 +1,81 @@
+{ lib
+, buildPythonPackage
+, pythonOlder
+, fetchFromGitHub
+, requests
+, six
+, stone
+, mock
+, pytest-mock
+, pytestCheckHook
+, sphinxHook
+}:
+
+buildPythonPackage rec {
+  pname = "dropbox";
+  version = "11.31.0";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+  outputs = ["out" "doc"];
+
+  src = fetchFromGitHub {
+    owner = "dropbox";
+    repo = "dropbox-sdk-python";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-mbBVivrpXYNuVbXeHRyy07LxPbtYvaL3JleK7QXOxi0=";
+  };
+
+  propagatedBuildInputs = [
+    requests
+    six
+    stone
+  ];
+
+  checkInputs = [
+    mock
+    pytest-mock
+    pytestCheckHook
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "'pytest-runner == 5.2.0'," ""
+  '';
+
+  doCheck = true;
+
+  pythonImportsCheck = [
+    "dropbox"
+  ];
+  nativeBuildInputs = [ sphinxHook ];
+
+  # Set SCOPED_USER_DROPBOX_TOKEN environment variable to a valid value.
+  disabledTests = [
+    "test_default_oauth2_urls"
+    "test_bad_auth"
+    "test_multi_auth"
+    "test_refresh"
+    "test_app_auth"
+    "test_downscope"
+    "test_rpc"
+    "test_upload_download"
+    "test_bad_upload_types"
+    "test_clone_when_user_linked"
+    "test_with_path_root_constructor"
+    "test_path_root"
+    "test_path_root_err"
+    "test_versioned_route"
+    "test_team"
+    "test_as_user"
+    "test_as_admin"
+    "test_clone_when_team_linked"
+  ];
+
+  meta = with lib; {
+    description = "Python library for Dropbox's HTTP-based Core and Datastore APIs";
+    homepage = "https://github.com/dropbox/dropbox-sdk-python";
+    license = licenses.mit;
+    maintainers = with maintainers; [ sfrijters ];
+  };
+}