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/heudiconv/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, isPy27
+, pytest
+, mock
+, dcm2niix
+, nibabel
+, pydicom
+, nipype
+, dcmstack
+, etelemetry
+, filelock
+}:
+
+buildPythonPackage rec {
+  version = "0.8.0";
+  pname = "heudiconv";
+
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit pname version;
+    #sha256 = "0gzqqa4pzhywdbvks2qjniwhr89sgipl5k7h9hcjs7cagmy9gb05";
+    sha256 = "1r6y93125mc84c09970ifps5xysp8ffp62rwlzili3q2k1m3fh4v";
+  };
+
+  postPatch = ''
+    # doesn't exist as a separate package with Python 3:
+    substituteInPlace heudiconv/info.py --replace "'pathlib'," ""
+  '';
+
+  propagatedBuildInputs = [
+    dcm2niix nibabel pydicom nipype dcmstack etelemetry filelock
+  ];
+
+  checkInputs = [ dcm2niix pytest mock ];
+
+  # test_monitor and test_dlad require 'inotify' and 'datalad' respectively,
+  # and these aren't in Nixpkgs
+  checkPhase = "pytest -k 'not test_dlad and not test_monitor' heudiconv/tests";
+
+  meta = with lib; {
+    homepage = "https://heudiconv.readthedocs.io";
+    description = "Flexible DICOM converter for organizing imaging data";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ bcdarwin ];
+  };
+}