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/scikit-image/default.nix

@@ -0,0 +1,113 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, buildPythonPackage
+, python
+, cython
+, numpy
+, scipy
+, matplotlib
+, networkx
+, six
+, pillow
+, pywavelets
+, dask
+, cloudpickle
+, imageio
+, tifffile
+, pytestCheckHook
+, doCheck ? false
+}:
+
+let
+  installedPackageRoot = "${builtins.placeholder "out"}/${python.sitePackages}";
+  self = buildPythonPackage rec {
+    pname = "scikit-image";
+    version = "0.18.3";
+
+    src = fetchFromGitHub {
+      owner = pname;
+      repo = pname;
+      rev = "v${version}";
+      sha256 = "0a2h3bw5rkk23k4r04qc9maccg00nddssd7lfsps8nhp5agk1vyh";
+    };
+
+    patches = [ ./add-testing-data.patch ];
+
+    nativeBuildInputs = [ cython ];
+
+    propagatedBuildInputs = [
+      cloudpickle
+      dask
+      imageio
+      matplotlib
+      networkx
+      numpy
+      pillow
+      pywavelets
+      scipy
+      six
+      tifffile
+    ];
+
+    # test suite is very cpu intensive, move to passthru.tests
+    inherit doCheck;
+    checkInputs = [ pytestCheckHook ];
+
+    # (1) The package has cythonized modules, whose .so libs will appear only in the wheel, i.e. in nix store;
+    # (2) To stop Python from importing the wrong directory, i.e. the one in the build dir, not the one in nix store, `skimage` dir should be removed or renamed;
+    # (3) Therefore, tests should be run on the installed package in nix store.
+
+    # See e.g. https://discourse.nixos.org/t/cant-import-cythonized-modules-at-checkphase/14207 on why the following is needed.
+    preCheck = ''
+      rm -r skimage
+    '';
+
+    disabledTestPaths = [
+      # Requires network access (actually some data is loaded via `skimage._shared.testing.fetch` in the global scope, which calls `pytest.skip` when a network is unaccessible, leading to a pytest collection error).
+      "${installedPackageRoot}/skimage/filters/rank/tests/test_rank.py"
+    ];
+    pytestFlagsArray = [ "${installedPackageRoot}" "--pyargs" "skimage" ] ++ builtins.map (testid: "--deselect=" + testid) ([
+      # These tests require network access
+      "skimage/data/test_data.py::test_skin"
+      "skimage/data/tests/test_data.py::test_skin"
+      "skimage/io/tests/test_io.py::test_imread_http_url"
+      "skimage/restoration/tests/test_rolling_ball.py::test_ndim"
+    ] ++ lib.optionals stdenv.isDarwin [
+      # Matplotlib tests are broken inside darwin sandbox
+      "skimage/feature/tests/test_util.py::test_plot_matches"
+      "skimage/filters/tests/test_thresholding.py::TestSimpleImage::test_try_all_threshold"
+      "skimage/io/tests/test_mpl_imshow.py::"
+    ]);
+
+    # Check cythonized modules
+    pythonImportsCheck = [
+      "skimage"
+      "skimage._shared"
+      "skimage.draw"
+      "skimage.feature"
+      "skimage.restoration"
+      "skimage.filters"
+      "skimage.future.graph"
+      "skimage.graph"
+      "skimage.io"
+      "skimage.measure"
+      "skimage.morphology"
+      "skimage.transform"
+      "skimage.util"
+      "skimage.segmentation"
+    ];
+
+    passthru.tests = {
+      all-tests = self.override { doCheck = true; };
+    };
+
+    meta = {
+      description = "Image processing routines for SciPy";
+      homepage = "https://scikit-image.org";
+      license = lib.licenses.bsd3;
+      maintainers = with lib.maintainers; [ yl3dy ];
+    };
+  };
+in
+  self