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Python中使用gzip模块压缩文件的简单教程

WBOY
Release： 2016-06-10 15:15:55
Original
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压缩数据创建gzip文件
先看一个略麻烦的做法
 

import StringIO,gzip
content = 'Life is short.I use python'
zbuf = StringIO.StringIO()
zfile = gzip.GzipFile(mode='wb', compresslevel=9, fileobj=zbuf)
zfile.write(content)
zfile.close()
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但其实有个快捷的封装，不用用到StringIO模块

f = gzip.open('file.gz', 'wb')
f.write(content)
f.close()
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压缩已经存在的文件
python2.7后，可以用with语句

import gzip
with open("/path/to/file", 'rb') as plain_file:
  with gzip.open("/path/to/file.gz", 'wb') as zip_file:
    zip_file.writelines(plain_file)
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如果不考虑跨平台，只在linux平台，下面这种方式更直接

from subprocess import check_call
check_call('gzip /path/to/file',shell=True)
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Related labels：
python compression
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