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/psutil/default.nix

@@ -0,0 +1,55 @@
+{ lib, stdenv, buildPythonPackage, fetchPypi, isPy27, python
+, darwin
+, pytestCheckHook
+, mock
+, ipaddress
+, unittest2
+}:
+
+buildPythonPackage rec {
+  pname = "psutil";
+  version = "5.9.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "869842dbd66bb80c3217158e629d6fceaecc3a3166d3d1faee515b05dd26ca25";
+  };
+
+  # We have many test failures on various parts of the package:
+  #  - segfaults on darwin:
+  #    https://github.com/giampaolo/psutil/issues/1715
+  #  - swap (on linux) might cause test failures if it is fully used:
+  #    https://github.com/giampaolo/psutil/issues/1911
+  #  - some mount paths are required in the build sanbox to make the tests succeed:
+  #    https://github.com/giampaolo/psutil/issues/1912
+  doCheck = false;
+  checkInputs = [ pytestCheckHook ]
+  ++ lib.optionals isPy27 [ mock ipaddress unittest2 ];
+  # In addition to the issues listed above there are some that occure due to
+  # our sandboxing which we can work around by disabling some tests:
+  # - cpu_times was flaky on darwin
+  # - the other disabled tests are likely due to sanboxing (missing specific errors)
+  pytestFlagsArray = [
+    "$out/${python.sitePackages}/psutil/tests/test_system.py"
+  ];
+
+  # Note: $out must be referenced as test import paths are relative
+  disabledTests = [
+    "user"
+    "disk_io_counters"
+    "sensors_battery"
+    "cpu_times"
+    "cpu_freq"
+  ];
+
+  buildInputs = lib.optionals stdenv.isDarwin [ darwin.IOKit ];
+
+  pythonImportsCheck = [ "psutil" ];
+
+  meta = with lib; {
+    description = "Process and system utilization information interface for python";
+    homepage = "https://github.com/giampaolo/psutil";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ jonringer ];
+  };
+}