Py2to3 translates python 2 to 3, which makes it easier to convert ST2 plugins to ST3. The plugin runs 2to3 on the currently open python file and opens a new diff file to show the changes. The original python file is overwritten and a backup is saved as file.py.bak. Errors from 2to3 are printed to the console. The idea is to make it easier to run 2to3 when adapting ST2 plugins to ST3. The command can be run from the command palette using Python 2to3: Translate Python 2 to 3.
Feel free to send pull request for other changes that make the ST2 to ST3 conversion easier.