关于Python中zipfile压缩包模块的使用

import random

import zipfile

with open('1.txt', mode='w') as f:

    for _ in range(1000):

        f.write(str(random.random()) + '\n')

with zipfile.ZipFile('1.zip', mode='w', compression=zipfile.ZIP_DEFLATED) as zf:

    zf.write('1.txt')

    zf.write('1.txt', '2.txt', zipfile.ZIP_STORED)  # 原文件名1.txt，存为2.txt，不压缩

import zipfile

with zipfile.ZipFile('1.zip') as zf:

    for filename in zf.namelist():

        zf.extract(filename, '.')

import zipfile

for filename in ['1.txt', '1.zip', '2.zip']:

    print(filename, zipfile.is_zipfile(filename))

    # 1.txt False

    # 1.zip True

    # 2.zip False

import zipfile

with zipfile.ZipFile('1.zip', 'r') as zf:

    print(zf.namelist())  # 文件列表

    for info in zf.infolist():

        print(info)

        print(info.filename)  # 文件名称

        print(info.date_time)  # 修改时间，可用datetime.datetime(*info.date_time)

        print(info.compress_type)  # 压缩类型，值为zipfile.ZIP_STORED、ZIP_DEFLATED、ZIP_BZIP2、ZIP_LZMA

        print(info.comment)  # 注释

        print(info.extra)  # 扩展字段数据

        print(info.create_system)  # 创建所用系统，0为Windows，3为Unix

        print(info.create_version)  # 创建所用PKZIP版本

        print(info.extract_version)  # 提取所用PKZIP版本

        print(info.flag_bits)  # 标志位

        print(info.volume)  # 文件头的分卷号

        print(info.compress_size)  # 已压缩的数据大小

        print(info.file_size)  # 未压缩的数据大小

        print()

import random

import zipfile

data = ''.join([str(random.random()) + '\n' for i in range(1000)])

with zipfile.ZipFile('1.zip', mode='w', compression=zipfile.ZIP_DEFLATED) as zf:

    zf.writestr('1.txt', data)

import time

import random

import zipfile

data = ''.join([str(random.random()) + '\n' for i in range(1000)])

with zipfile.ZipFile('1.zip', mode='w', compression=zipfile.ZIP_DEFLATED) as zf:

    info = zipfile.ZipInfo('1.txt', date_time=time.localtime(time.time()))

    info.compress_type = zipfile.ZIP_DEFLATED

    info.comment = b'a comment'

    info.create_system = 0

    zf.writestr(info, data)

import random

import zipfile

with open('2.txt', mode='w') as f:

    for _ in range(1000):

        f.write(str(random.random()) + '\n')

with zipfile.ZipFile('1.zip', mode='a') as zf:

    zf.write('2.txt')

import sys

import zipfile

with zipfile.PyZipFile('pyzipfile.zip', mode='w') as zf:

    zf.debug = 3

    zf.writepy('.')

for name in zf.namelist():

    print(name)

sys.path.insert(0, 'pyzipfile.zip')

import zipfile_pyzipfile

print('Imported from:', zipfile_pyzipfile.__file__)