The following error should be triggered for Python scripts which start with `#!/usr/bin/env python3` as in Python 3 UTF-8 is assumed and encoding preamble is no longer obligatory.
File "*****.py", line 23 SyntaxError: Non-ASCII character '\x**' in file process.py on line **, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details
------------------ (program exited with code: 1) Press return to continue
Reported for version `built on or after Sep 23 2016` or according to dpkg version `1.28-2` on Unutu Yakkety.