PyMCTranslate is a translation system for Minecraft blocks, block entities, entities and items. It enables translating data between a large number of Minecraft versions and platforms via an in-between format known as the Universal format. This Universal format is a custom format independent of any Minecraft version and is designed to handle all data from any supported Minecraft version.
The project is made up of a large number of specification and mapping files that are independent of any programming language making it a very flexible system. These files are read by a small wrapper program that does what the mapping file says to do. Currently only a wrapper for Python 3 exists but others could be written.
This project was created for and is used by Amulet as a way to load the data from any world format into a consistent format. This allows the editing of the data to be done in the same way regardless of what world format it has come from. This should solve a number of the issues that were present in MCEdit.