Python脚本实现文件内容替换

最近因为有一个项目需要从普通的服务器移植到SAE，而SAE的thinkphp文件结构和本地测试的有出入，需要把一些html和js的引用路径改成SAE的形式，为了不手工改，特地速成了一下python的正则表达式和文件操作。主要要求是将某目录下的html和js里面的几个路径变量分别更改成相应的形式，匹配文件名的时候用了正则

import os
import re
#all file in the directory
filelist = []
#function to traverse the directory
def recurseDir(path):
for i in os.listdir(path):
if os.path.isdir(path + '\\' + i):
recurseDir(path + '\\' + i)
else:
p = path + '\\' + i
print p
filelist.append(p)

#replace the file content
def replace(strFind, strReplace, lines, fileIO):
for s in lines:
if s.find(strFind) != -1:
foutput.write(s)
fileIO.write(s.replace(strFind, strReplace))

rootpath = os.path.abspath('.')
recurseDir(rootpath)

pattern1 = re.compile(r'.+html')
pattern2 = re.compile(r'.+js')

for fileName in filelist:
match1 = pattern1.match(fileName)
match2 = pattern2.match(fileName)
if match1 or match2:
lines = open(fileName).readlines()
fp = open(fileName + '.temp','w')
foutput = open("result.txt", 'w')
foutput.write(fileName)
if match1:
replace('<include file="./Tpl/', '<include file="./App/Tpl/', lines, fp)
if match2:
replace('xxx/index.php', 'index.php', lines, fp)
fp.close()
#delete original file
if os.path.exists(fileName):
os.remove(fileName);
#rename the temp file
os.rename(fileName + '.temp', fileName)