本文实例讲述了python实现压缩与解压gzip大文件的方法。分享给大家供大家参考，具体如下：
#encoding=utf-8
#author: walker
#date: 2015-10-26
#summary: 测试gzip压缩/解压文件
import gzip
bufsize = 1024*8
def gzipfile(src, dst):
fin = open(src, ‘rb’)
fout = gzip.open(dst, ‘wb’)
in2out(fin, fout)
def gunzipfile(gzfile, dst):
fin = gzip.open(gzfile, ‘rb’)
fout = open(dst, ‘wb’)
in2out(fin, fout)
def in2out(fin, fout):
while true:
buf = fin.read(bufsize)
if len(buf) < 1:
break
fout.write(buf)
fin.close()
fout.close()
if __name__ == '__main__':
src = r'd:\tmp\src.txt'
dst = r'd:\tmp\src.txt.gz'
ori = r'd:\tmp\ori.txt'
gzipfile(src, dst)
print('gzipfile over!')
gunzipfile(dst, ori)
print('gunzipfile over!')
也可以简单地封装成一个类：
class gziptool:
def __init__(self, bufsize):
self.bufsize = bufsize
self.fin = none
self.fout = none
def compress(self, src, dst):
self.fin = open(src, ‘rb’)
self.fout = gzip.open(dst, ‘wb’)
self.__in2out()
def decompress(self, gzfile, dst):
self.fin = gzip.open(gzfile, ‘rb’)
self.fout = open(dst, ‘wb’)
self.__in2out()
def __in2out(self,):
while true:
buf = self.fin.read(self.bufsize)
if len(buf) < 1:
break
self.fout.write(buf)
self.fin.close()
self.fout.close()
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