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使用Python压缩和解压缩zip文件的教程

WBOY
WBOYOriginal
2016-06-10 15:13:121133browse

python 的 zipfile 提供了非常便捷的方法来压缩和解压 zip 文件。

例如,在py脚本所在目录中,有如下文件:

复制代码 代码如下:
readability/readability.js
readability/readability.txt
readability/readability-print.css
readability/sprite-readability.png
readability/readability.css

将 readability 目录中的文件压缩到脚本所在目录的 readability.zip 文件中,保持相同的文件结构,然后打印出生成的压缩包 的文件列表,再用两种方式分别解压文件到脚本所在目录的 output 目录和 output/bak 目录中。

脚本如下:

#!/usr/vin/env python
# coding: utf-8
"""
压缩和解压zip文件
"""

import os
import zipfile

def compress(zip_file, input_dir):
  f_zip = zipfile.ZipFile(zip_file, 'w')
  for root, dirs, files in os.walk(input_dir):
    for f in files:
      # 获取文件相对路径,在压缩包内建立相同的目录结构
      abs_path = os.path.join(os.path.join(root, f))
      rel_path = os.path.relpath(abs_path, os.path.dirname(input_dir))
      f_zip.write(abs_path, rel_path, zipfile.ZIP_STORED)

def extract(zip_file, output_dir):
  f_zip = zipfile.ZipFile(zip_file, 'r')

  # 解压所有文件到指定目录
  f_zip.extractall(output_dir)

  # 逐个解压文件到指定目录
  for f in f_zip.namelist():
    f_zip.extract(f, os.path.join(output_dir, 'bak'))

def printdir(zip_file):
  f_zip = zipfile.ZipFile(zip_file, 'r')
  print '== printdir() ============================'
  f_zip.printdir()
  print
  print '== namelist() ============================'
  for f in f_zip.namelist():
    print f

if __name__ == '__main__':
  zip_file = 'readability.zip'
  compress(zip_file, os.path.join(os.getcwd(), 'readability'))
  printdirzip_file)
  extract(zip_file, 'output')


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