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/tornado/default.nix

@@ -0,0 +1,35 @@
+{ lib
+, python
+, buildPythonPackage
+, fetchPypi
+, pycares
+, pycurl
+, twisted
+}:
+
+buildPythonPackage rec {
+  pname = "tornado";
+  version = "6.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "33c6e81d7bd55b468d2e793517c909b139960b6c790a60b7991b9b6b76fb9791";
+  };
+
+  checkInputs = [
+    pycares
+    pycurl
+    twisted
+  ];
+
+  pythonImportsCheck = [ "tornado" ];
+
+  __darwinAllowLocalNetworking = true;
+
+  meta = with lib; {
+    description = "A web framework and asynchronous networking library";
+    homepage = "https://www.tornadoweb.org/";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ SuperSandro2000 ];
+  };
+}