Python 之 error：NonASCII character '\xa1'

SyntaxError: Non-ASCII character '\xa1' in file test.py on line 27, but no encod
ing declared; see http://www.python.org/peps/pep-0263.html for details

Fixed by add the following lines in header of .py file

#! /usr/bin/env python 
#-*- coding:utf-8 -*-