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/bpycv/default.nix

@@ -0,0 +1,62 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, fetchFromGitHub
+, fetchurl
+, writeText
+, blender
+, minexr
+, beautifulsoup4
+, zcs
+, requests
+, opencv3
+, boxx
+}:
+
+buildPythonPackage rec {
+  pname = "bpycv";
+  version = "0.2.43";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-6LXhKuNkX3yKeZARLXmOVNAUQhJghtzKhnszJ1G/a8U=";
+  };
+
+  propagatedBuildInputs = [
+    beautifulsoup4
+    minexr
+    zcs
+    requests
+    opencv3
+    boxx
+  ];
+
+  postPatch = ''
+    sed -i 's/opencv-python//g' requirements.txt
+  '';
+
+  # pythonImportsCheck = [ "bpycv" ]; # this import depends on bpy that is only available inside blender
+  checkInputs = [ blender ];
+  checkPhase = let
+    bpycv_example_data = fetchFromGitHub {
+      owner = "DIYer22";
+      repo = "bpycv_example_data";
+      sha256 = "sha256-dGb6KvbXTGTu5f4AqhA+i4AwTqBoR5SdXk0vsMEcD3Q=";
+      rev = "6ce0e65c107d572011394da16ffdf851e988dbb4";
+    };
+  in ''
+    TEMPDIR=$(mktemp -d)
+    pushd $TEMPDIR
+      cp -r ${bpycv_example_data} example_data
+      chmod +w -R example_data
+      BPY_EXAMPLE_DATA=${bpycv_example_data} blender -b -P ${./bpycv-test.py}
+    popd
+  '';
+
+  meta = with lib; {
+    description = "Computer vision utils for Blender";
+    homepage = "https://github.com/DIYer22/bpycv";
+    license = licenses.mit;
+    maintainers = with maintainers; [ lucasew ];
+  };
+}