Convert Python 2 Code to Python 3

Upgrade Python 2 code to Python 3, handling print, unicode, xrange, and integer division.

category:modernization

python

migration

syntax

backend

Prompt

Convert this Python 2 script to Python 3.

Checklist:
- Replace print statements with print() function
- Fix unicode/bytes handling
- Replace xrange with range
- Fix integer division using // where appropriate
- Update any deprecated stdlib usage

Explain any behavioral differences introduced by the migration.