Python gzip库函数使用方法及实例

<pre name="code" class="python">解压gzip文件示例:
import gzip
f = gzip.open('file.txt.gz', 'rb')
file_content = f.read()
f.close()

创建gzip文件:
import gzip
content = "Lots of content here"
f = gzip.open('file.txt.gz', 'wb')
f.write(content)
f.close()

gzip压缩现有文件:
import gzip
f_in = open('file.txt', 'rb')
f_out = gzip.open('file.txt.gz', 'wb')
f_out.writelines(f_in)
f_out.close()
f_in.close()

实例：

从/opt/mat/*.gz文件中读取每一行，找到包含'GET~#~ ~#~'或者'POST~#~ ~#~'的输出该行

#!/usr/bin/python
#!encoding:utf8

import shutil
import os
import sys
import glob
import re
import gzip

#扫描目录文件
def parseFile(filename):
#打开文件，遍历其中的每一行遇到有'GET~#~ ~#~'或者'POST~#~ ~#~'的输出该行
file = gzip.open(filename, 'rb')
#eachline = file.readlines()
for eachline in file:
#str = eachline
#if eachline == "*GET~#~ ~#~*" or eachline == "*POST~#~ ~#~*":
if eachline.find("GET~#~ ~#~") or eachline.find("*POST~#~ ~#~*"):
print(eachline)
file.close()
if __name__ == '__main__':
scandir = '/opt/mat/'
fileform = '*.gz'
flist = glob.glob(os.path.join(scandir, fileform))
for item in flist:
print(item)
parseFile(item)