SyntaxError: Non-UTF-8 code starting with '\xb9' (vi로 작성시 encoding 문제)

[root@localhost studywork]# python3.5 marks.py 

  File "marks.py", line 9

SyntaxError: Non-UTF-8 code starting with '\xb9' in file marks.py on line 9, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details

참고 URL : https://www.python.org/dev/peps/pep-0263/

* 편집기를 사용하여 소스코드 작성 시 가장 첫 줄에 다음과 같이 encoding 정의를 내려주어야 한다.

# -*- coding: utf-8 -*-

  # coding=<encoding name>

    or (using formats recognized by popular editors)

          #!/usr/bin/python
          # -*- coding: <encoding name> -*-