在安装或者启动Terminator时可能出现这个问题：
lin@Dev:~$ terminator
File "/usr/bin/terminator", line 123
except (KeyError,ValueError), ex:
^
SyntaxError: invalid syntax
错误原因：语法错误．这是因为Terminator的安装或者运行需要python2的环境，但是却用python3的环境去运行Terminator了．
我们查看Terminator的启动脚本文件，在'/usr/bin'下．
vi /usr/bin/terminator#!/usr/bin/python
# Terminator - multiple gnome terminals in one window
# Copyright (C) 2006-2010 cmsj@tenshu.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 2 only.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
# USA
"""Terminator by Chris Jones <cmsj@tenshu.net>"""
import sys
import os
import psutil
．．．．
．．．．第一行标示使用的是系统默认的python脚本．
系统安装的python的版本有两个分别是python2.7和python3.6，当python链接到python2.7时，程序运行正常，链接到python3.6时出现以上的语法错误。
解决方法：
1. 将系统默认的python版本链接到2(不建议)
2. 修改terminator的启动脚本(/usr/bin/terminator)如下：
#! /usr/bin/python2保存退出重新运营terminator，成功．