2 starting comments for a python script

Every python script should start with 2 lines in comment. These will define important aspects of your script's behaviour.

#!/usr/bin/python
# -*- coding: utf-8 -*-
The shebang on the first line makes the script executable as a shell script (= you can execute the script without having to type "python" in front of its filename).

The next line sets the default character set for your script. All string literals inside your script will be interpreted according to this character set. Since we are using utf-8, we can write string literals with unicode characters inside of them.

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