Python Zipfile Module

Reading ZIP files

>>> with zipfile.ZipFile('example.zip') as example_zip:
...     print(example_zip.namelist())
...     spam_info = example_zip.getinfo('spam.txt')
...     print(spam_info.file_size)
...     print(spam_info.compress_size)
...     print('Compressed file is %sx smaller!' % (round(spam_info.file_size / spam_info.compress_size, 2)))
...
# ['spam.txt', 'cats/', 'cats/catnames.txt', 'cats/zophie.jpg']
# 13908
# 3828
# 'Compressed file is 3.63x smaller!'

Extracting from ZIP Files

The extractall() method for ZipFile objects extracts all the files and folders from a ZIP file into the current working directory.

>>> with zipfile.ZipFile('example.zip') as example_zip:
...     example_zip.extractall()

The extract() method for ZipFile objects will extract a single file from the ZIP file:

>>> with zipfile.ZipFile('example.zip') as example_zip:
...     print(example_zip.extract('spam.txt'))
...     print(example_zip.extract('spam.txt', 'C:\\some\\new\\folders'))
...
# 'C:\\spam.txt'
# 'C:\\some\\new\\folders\\spam.txt'

Creating and Adding to ZIP Files

>>> import zipfile
>>>
>>> with zipfile.ZipFile('new.zip', 'w') as new_zip:
...     new_zip.write('spam.txt', compress_type=zipfile.ZIP_DEFLATED)

This code will create a new ZIP file named new.zip that has the compressed contents of spam.txt.

Reading metadata of ZIP files

Getting the filenames with namelist()

>>> import zipfile
>>>
>>> with zipfile.ZipFile('example.zip', 'r') as zf:
...    print(zf.namelist())
...
# ['README.txt']

Getting all metadata with infolist()

>>> import datetime
>>> import zipfile
>>>
>>> with zipfile.ZipFile(archive_name) as zf:
...    for info in zf.infolist():
...        system = 'Windows' if info.create_system == 0 else 'Unix'
...        modified = datetime.datetime(*info.date_time)
...        print(info.filename)
...        print(f'Comment     : {info.comment}')
...        print(f'Modified    : {modified}')
...        print(f'System      : {system}')
...        print(f'ZIP version : {info.create_version}')
...        print(f'Compressed  : {info.compress_size} bytes')
...        print(f'Uncompressed: {info.file_size} bytes')
...
# README.txt
# Comment     : b''
# Modified    : 2022-11-15 06:48:02
# System      : Unix
# ZIP version : 30
# Compressed  : 65 bytes
# Uncompressed: 76 bytes