python的paramiko模块报错解决办法

写了一个Python脚本内容如下：

#-*- coding:utf-8 -*-
__author__ = 'kai'
import paramiko
import sys,os

host = sys.argv[1]
user = 'zk'
password = '123'

cmd = sys.argv[2]

s = paramiko.SSHClient()        #绑定实例
s.load_system_host_keys()       #加载本机HOST主机文件
s.set_missing_host_key_policy(paramiko.AutoAddPolicy())

s.connect(host,22,user,password,timeout=5)   #连接远程主机
stdin,stdout,stderr = s.exec_command(cmd)               #执行命令

cmd_result = stdout.read(),stderr.read()                #读取命令结果

for line in cmd_result:
print line,

s.close()

主要是练习用的，执行之后报错：

#python paramkio.py localhost df
No handlers could be found for logger "paramiko.transport"
Traceback (most recent call last):
File "paramkio.py", line 16, in <module>
s.connect(host,22,user,password,timeout=5)   #连接远程主机
File "build/bdist.linux-x86_64/egg/paramiko/client.py", line 296, in connect
File "build/bdist.linux-x86_64/egg/paramiko/transport.py", line 458, in start_client
paramiko.SSHException: Incompatible ssh peer (no acceptable kex algorithm)

产生的原因是因为安装的paramiko模块版本太低查看当前的paramiko版本：pip freezelxml==3.4.2MySQL-python==1.2.5ndg-httpsclient==0.3.2oauthlib==0.6.1oneconf==0.3.7PAM==0.4.2paramiko==1.7.6Pillow==2.7.0piston-mini-client==0.7.5pyasn1==0.1.7pyasn1-modules==0.0.5pycrypto==2.6.1pycups==1.9.72然后直接升级模块版本就行了：pip install paramiko --upgrade
paramiko==1.15.2
重新执行脚本后：

# python paramkio.py localhost df
文件系统          1K-块    已用     可用 已用% 挂载点
udev            1004980       0  1004980    0% /dev
tmpfs            203228    5300   197928    3% /run
/dev/sda1      18447100 3839844 13647156   22% /
tmpfs           1016124     156  1015968    1% /dev/shm
tmpfs              5120       4     5116    1% /run/lock
tmpfs           1016124       0  1016124    0% /sys/fs/cgroup
cgmfs               100       0      100    0% /run/cgmanager/fs
tmpfs            203228      40   203188    1% /run/user/1000
/dev/sr0        1123872 1123872        0  100% /media/zk/Ubuntu 15.04 amd64

搞定
本文出自 “linux服务” 博客，请务必保留此出处http://kaixiansen.blog.51cto.com/3842955/1695065