This patch contains irrelevant changes. The minimal required change would be the attached. If you want refacotor the UnicodeData reader or rearrange import sutff, it should be separate patches.
I'm not sure I'd classify the second change as "irrelevant." Using "with" is the standard and recommended practice for working with files in Python. At the moment the script does nothing to close the open data file, whether through regular processing or in the case of an exception. I would argue that's a bug and should be fixed. Creating a separate patch for that seems to be adding work for no reason.
