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/venusian/default.nix

@@ -0,0 +1,31 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, isPy27
+, pytest
+, pytest-cov
+}:
+
+buildPythonPackage rec {
+  pname = "venusian";
+  version = "3.0.0";
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "f6842b7242b1039c0c28f6feef29016e7e7dd3caaeb476a193acf737db31ee38";
+  };
+
+  checkInputs = [ pytest pytest-cov ];
+
+  checkPhase = ''
+    pytest
+  '';
+
+  meta = with lib; {
+    description = "A library for deferring decorator actions";
+    homepage = "https://pylonsproject.org/";
+    license = licenses.bsd0;
+    maintainers = with maintainers; [ domenkozar ];
+  };
+}