This python module is a wrapper around two feature of Unreal, the remote control api (rest), and the Python remote execution.
This allows you to drive Unreal from an external python process, for instance in a DCC session ( Houdini, Blender, Maya, … ).
It is available for free on github, check the wiki for more informations:
https://github.com/cgtoolbox/UnrealRemoteControlWrapper/wiki
Remote control api
Remote execution
Example usage with Houdini: