报错信息：

SyntaxError: Non-ASCII character ‘\xc3’ in file /home/user/ROSpy-LeaderFollower/src/follow_/src/scripts/tb3_flw.py on line 46, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details

解决办法：

python开头加

#!/usr/bin/env python2
#-*- coding:utf-8 -*-