What I want
I want to create a GUI in Python which allows for a node-linkage interaction which encapsulates Python code/objects/functions. The following examples are the kinds of functionality that I would like to achieve.
What I found
I found Nodebox, with its source here. I will usually try learn off others repositories but its using Jython. I am not experienced with Java.
Another example is nodeworks but the source code is not available, at least as far as I can tell.
An open-source alternative to Simulink written in Python, although technically it has not been made open-source as of yet.
My specific question
Is there any package out there that allows me to create an interface with this functionality or will I need to use Jython? I'm prepared to learn if this achieves the best result.