https://blendermarket.com/products/serpens

Serpens is a node-based scripting addon for blender. It allows you to create real, installable python addons without touching a single line of code.  Whether you want to make a simple panel with buttons you often use, create a pie menu to improve your workflow, or create something more complex to share online, Serpens lets you do this with nodes.  If you want to have a good entry point into the blender API and start learning python Serpens is also for you. We provide tools to include python code and let you see the generated code to learn from.