I'm afraid it is a question of copyright

[snippsat]

# -*- coding: utf-8 -*- was needed in Python 2 to set source encoding to UTF-8.
Python 2 has default ASCII encoding,Python 3.x has default UTF-8 encoding.
So using that line only make sense if using Python 2,
or want to deviate from the default UTF-8 in Python 3 eg # -*- coding: latin-1 -*-.