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/altair/default.nix

@@ -0,0 +1,62 @@
+{ lib, buildPythonPackage, fetchPypi, isPy27
+, entrypoints
+, glibcLocales
+, ipython
+, jinja2
+, jsonschema
+, numpy
+, pandas
+, pytestCheckHook
+, pythonOlder
+, recommonmark
+, six
+, sphinx
+, toolz
+, typing ? null
+, vega_datasets
+}:
+
+buildPythonPackage rec {
+  pname = "altair";
+  version = "4.2.0";
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "d87d9372e63b48cd96b2a6415f0cf9457f50162ab79dc7a31cd7e024dd840026";
+  };
+
+  propagatedBuildInputs = [
+    entrypoints
+    jsonschema
+    numpy
+    pandas
+    six
+    toolz
+    jinja2
+  ] ++ lib.optionals (pythonOlder "3.5") [ typing ];
+
+  checkInputs = [
+    glibcLocales
+    ipython
+    pytestCheckHook
+    recommonmark
+    sphinx
+    vega_datasets
+  ];
+
+  pythonImportsCheck = [ "altair" ];
+
+  # avoid examples directory, which fetches web resources
+  preCheck = ''
+    cd altair/tests
+  '';
+
+  meta = with lib; {
+    description = "A declarative statistical visualization library for Python.";
+    homepage = "https://github.com/altair-viz/altair";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ teh ];
+    platforms = platforms.unix;
+  };
+}