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/datashape/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytest
+, mock
+, numpy
+, multipledispatch
+, python-dateutil
+}:
+
+let
+  # Fetcher function looks similar to fetchPypi.
+  # Allows for easier overriding, without having to know
+  # how the source is actually fetched.
+  fetcher = {pname, version, sha256}: fetchFromGitHub {
+    owner = "blaze";
+    repo = pname;
+    rev = version;
+    inherit sha256;
+  };
+
+in buildPythonPackage rec {
+  pname = "datashape";
+  version = "0.5.4";
+
+  src = fetcher {
+    inherit pname version;
+    sha256 = "0rhlj2kjj1vx5m73wnc5518rd6cs1zsbgpsvzk893n516k69shcf";
+  };
+
+  checkInputs = [ pytest mock ];
+  propagatedBuildInputs = [ numpy multipledispatch python-dateutil ];
+
+  # Disable several tests
+  # https://github.com/blaze/datashape/issues/232
+  checkPhase = ''
+    pytest --ignore datashape/tests/test_str.py \
+           --ignore datashape/tests/test_user.py
+  '';
+
+  # https://github.com/blaze/datashape/issues/238
+  PYTEST_ADDOPTS = "-k 'not test_record and not test_tuple'";
+
+  meta = {
+    homepage = "https://github.com/ContinuumIO/datashape";
+    description = "A data description language";
+    license = lib.licenses.bsd2;
+    maintainers = with lib.maintainers; [ fridh ];
+  };
+}