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/webhelpers/default.nix

@@ -0,0 +1,31 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, routes
+, markupsafe
+, webob
+, nose
+}:
+
+buildPythonPackage rec {
+  pname = "WebHelpers";
+  version = "1.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "ea86f284e929366b77424ba9a89341f43ae8dee3cbeb8702f73bcf86058aa583";
+  };
+
+  buildInputs = [ routes markupsafe webob nose ];
+
+  # TODO: failing tests https://bitbucket.org/bbangert/webhelpers/pull-request/1/fix-error-on-webob-123/diff
+  doCheck = false;
+
+  meta = with lib; {
+    homepage = "https://webhelpers.readthedocs.org/en/latest/";
+    description = "Web Helpers";
+    license = licenses.free;
+    maintainers = with maintainers; [ domenkozar ];
+  };
+
+}