1升級到系統python為2.7.11，使用iotop顯示

]# iotop
No module named iotop.ui
To run an uninstalled copy of iotop,
launch iotop.py in the top directory

檢視iotop命令路徑
which iotop

進入看下具體檔案寫的是啥
vim /usr/sbin/iotop

#!/usr/bin/python
# iotop: Display I/O usage of processes in a top like UI
# Copyright (c) 2007, 2008 Guillaume Chazarain <
 
[email protected]>, GPLv2
# See iotop --help for some help

import sys

try:
    from iotop.ui import main
except ImportError, e:
    print e
    print 'To run an uninstalled copy of iotop,'
    print 'launch iotop.py in the top directory'
else:
    try:
        main()
    except KeyboardInterrupt:
        pass
 

    sys.exit(0)

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修改這裡的python變數路徑

#!/usr/bin/python2.6

當然前提是你裝新的python2.7的時候，將老的python備份成了python2.6了