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/flask-mongoengine/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, flask
+, flask-wtf
+, mongoengine
+, six
+, nose
+, rednose
+, coverage
+, email_validator
+}:
+
+buildPythonPackage rec {
+  pname = "flask-mongoengine";
+  version = "1.0.0";
+
+  src = fetchFromGitHub {
+    owner = "MongoEngine";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "10g9b13ls2msnhv8j44gslrfxa2ppqz2y1xjn2a4gg4m9mdjv8b2";
+  };
+
+  propagatedBuildInputs = [
+    email_validator
+    flask
+    flask-wtf
+    mongoengine
+    six
+  ];
+
+  # they set test requirements to setup_requirements...
+  buildInputs = [
+    nose
+    rednose
+    coverage
+  ];
+
+  # tests require working mongodb connection
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Flask-MongoEngine is a Flask extension that provides integration with MongoEngine and WTF model forms";
+    homepage = "https://github.com/mongoengine/flask-mongoengine";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}