old_contents: from nbt import *
  
  VERSION = (1, 1)
  
  def _get_version():
      return ".".join(VERSION)
new_contents: __all__ = ["chunk", "region", "nbt"]
  from . import *
  
  VERSION = (1, 1)
  
  def _get_version():
      return ".".join(VERSION)
subject: Use relative import (required for Python 3, supported in 2.6 or higher)