问python文件操作

EN

import os,glob,fileinput
root="/tmp"
path=os.path.join(root,"dir")
alines=["line 1\n","line 2\n","line 3\n","line 4\n"]
os.chdir(path)
# for clients
for clientfile in glob.glob("*.client.log"):
    data=open(clientfile).readlines()
    data.append(alines)
    open("temp","w").write(''.join(data))
    os.rename("temp",clientfile)
for svrfile in glob.glob("*.server.log"):
    f=0
    for line in fileinput.FileInput(svrfile,inplace=1):
         ind=line.find("After-this")
         if ind!=-1 and not f:
             line=line[:ind+10] + ''.join(alines) + line[ind+10:]
             f=1
         print line