How to call a Python function and get returned arguments from BluePrint

@scottunreal , i am using unreal engine 4, which don’t have the python nodes, so i have to use c++ execute process function (from std), and the value returned by that function is the return state (0 or 1). But i need to send data from python script, other than the state of the execution. How should i do that?
In case someone ends up in this thread, and if none solution works, i suggest using sockets to connect from unreal to python script and send data via the socket.