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/safety/default.nix

@@ -0,0 +1,54 @@
+{ lib
+, buildPythonPackage
+, pythonOlder
+, fetchPypi
+, setuptools
+, click
+, requests
+, packaging
+, dparse
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "safety";
+  version = "1.10.3";
+
+  disabled = pythonOlder "3.5";
+
+  format = "setuptools";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-MOOU0CogrEm39lKS0Z04+pJ6j5WCzf060a27xmxkGtU=";
+  };
+
+  propagatedBuildInputs = [
+    setuptools
+    click
+    requests
+    packaging
+    dparse
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  # Disable tests depending on online services
+  disabledTests = [
+    "test_check_live"
+    "test_check_live_cached"
+  ];
+
+  preCheck = ''
+    export HOME=$(mktemp -d)
+  '';
+
+  meta = with lib; {
+    description = "Checks installed dependencies for known vulnerabilities";
+    homepage = "https://github.com/pyupio/safety";
+    license = licenses.mit;
+    maintainers = with maintainers; [ thomasdesr dotlambda ];
+  };
+}