Python之tarfile模块的使用

#!/usr/bin/env python3
# encoding: utf-8

import tarfile

filename_list = [‘REME.txt‘, ‘example.bz2‘, ‘tarDir.tar‘, ‘content.txt‘]
for filename in filename_list:
    try:
        print(‘{:>15} {}‘.format(filename, tarfile.is_tarfile(filename)))
    except IOError as err:
        print(‘{:>15} {}‘.format(filename, err))

#!/usr/bin/env python3
# encoding: utf-8

import tarfile

with tarfile.open(‘tarDir.tar‘, ‘r‘) as t:
    print(t.getnames())

#!/usr/bin/env python3
# encoding: utf-8

import tarfile
import time

with tarfile.open(‘tarDir.tar‘, ‘r‘) as t:
    for member_info in t.getmembers():
        print(member_info.name)
        print(‘ 修改时间:‘, time.ctime(member_info.mtime))
        print(‘ 模式:‘, member_info.mode)
        print(‘ 类型:‘, member_info.type)
        print(‘ 大小:‘, member_info.size, ‘bytes‘)

#!/usr/bin/env python3
# encoding: utf-8

import tarfile

with tarfile.open(‘tarDir.tar‘, ‘r‘) as t:
    for filename in [‘example.bz2‘, ‘test‘]:
        try:
            info = t.getmember(filename)
        except KeyError:
            print(‘{} 文件不存在‘.format(filename))
        else:
            print(‘文件名:{} 大小:{} bytes‘.format(info.name, info.size))

#!/usr/bin/env python3
# encoding: utf-8

import tarfile

with tarfile.open(‘tarDir.tar‘, ‘r‘) as t:
    for filename in [‘example.bz2‘, ‘test‘]:
        try:
            f = t.extractfile(filename)
        except KeyError:
            print(‘{} 文件不存在,无法归档‘.format(filename))
        else:
            print(‘文件名:{} 读到的内容:{}‘.format(filename, f.read().decode(‘utf-8‘)))

#!/usr/bin/env python3
# encoding: utf-8

import os
import tarfile

dir_name = ‘outdir‘
os.mkdir(dir_name)
with tarfile.open(‘tarDir.tar‘, ‘r‘) as f:
    f.extract(‘content.txt‘, dir_name)
print(os.listdir(dir_name))

#!/usr/bin/env python3
# encoding: utf-8

import os
import tarfile

dir_name = ‘outdir‘
os.mkdir(dir_name)
with tarfile.open(‘tarDir.tar‘, ‘r‘) as f:
    f.extractall(dir_name)
print(os.listdir(dir_name))

#!/usr/bin/env python3
# encoding: utf-8

import os
import tarfile

dir_name = ‘outdir‘
os.mkdir(dir_name)
with tarfile.open(‘tarDir.tar‘, ‘r‘) as f:
    f.extractall(dir_name, members=[f.getmember(‘content.txt‘)])
print(os.listdir(dir_name))

#!/usr/bin/env python3
# encoding: utf-8

import tarfile

with tarfile.open(‘tarfile_add.tar‘, ‘w‘) as out:
    out.add(‘content.txt‘)

with tarfile.open(‘tarfile_add.tar‘, ‘r‘) as rf:
    for member_info in rf.getmembers():
        print(member_info.name)

#!/usr/bin/env python3
# encoding: utf-8

import tarfile

with tarfile.open(‘tarfile_addfile.tar‘, ‘w‘) as out:
    info = out.gettarinfo(‘content_update.txt‘, arcname=‘content.txt‘)
    out.addfile(info)

with tarfile.open(‘tarfile_add.tar‘, ‘r‘) as rf:
    for member_info in rf.getmembers():
        print(member_info.name)

#!/usr/bin/env python3
# encoding: utf-8

import io
import tarfile

text = ‘This is the data to write to the archive.‘
data = text.encode(‘utf-8‘)

with tarfile.open(‘addfile_string.tar‘, ‘w‘) as out:
    info = tarfile.TarInfo(‘make_up_file.txt‘)  # 创建一个文件的标签信息
    info.size = len(data)  # 设置空上标签的长度
    out.addfile(info, io.BytesIO(data))  # 如果fileobj有附值，则表示是一个二进制文件，会读取fileobj.size大小，取数据归档

with tarfile.open(‘addfile_string.tar‘, ‘r‘) as rf:
    for member_info in rf.getmembers():
        f = rf.extractfile(member_info.name)
        print(f.read().decode(‘utf-8‘))

#!/usr/bin/env python3
# encoding: utf-8

import tarfile

# 创建tar归档文件
with tarfile.open(‘tarfile_append.tar‘, ‘w‘) as out:
    out.add(‘test.py‘)

# 查看tar里面的文件名字
with tarfile.open(‘tarfile_append.tar‘, ‘r‘) as rf:
    print([m.name for m in rf.getmembers()])

#往tar增加多一个文件归属
with tarfile.open(‘tarfile_append.tar‘,‘a‘) as add_f:
    add_f.add(‘__init__.py‘)

# 查看tar里面的文件名字
with tarfile.open(‘tarfile_append.tar‘, ‘r‘) as rf:
    print([m.name for m in rf.getmembers()])

#!/usr/bin/env python3
# encoding: utf-8

import tarfile
import os

fmt = ‘{:<30} {:<10}‘
print(fmt.format(‘filename‘, ‘size‘))
print(fmt.format(‘content.txt‘, os.stat(‘content.txt‘).st_size))

files = [
    (‘tarfile_compression.tar‘, ‘w‘),
    (‘tarfile_compression.tar.gz‘, ‘w:gz‘),
    (‘tarfile_compression.tar.bz2‘, ‘w:bz2‘),
]

for filename, write_mode in files:
    #设置归档的格式
    with tarfile.open(filename, mode=write_mode) as out:
        out.add(‘content.txt‘)

    print(fmt.format(filename, os.stat(filename).st_size), end=‘ ‘)
    print([m.name for m in tarfile.open(filename, ‘r:*‘).getmembers()])