Python Compression: Create Encrypted Archives in ZIP and 7z

Sun, 09 Feb 2025 00:00:00 +0000

ZIP format compression

import pyzipper

with pyzipper.AESZipFile(dest + '.zip', "w", encryption=pyzipper.WZ_AES) as zf:
    zf.setpassword(b"password")
    for file in os.listdir(dest):
        fullfile = os.path.join(dest, file)
        zf.write(fullfile, file)

import pyzipper vs import zipfile
pyzipper is mostly API-compatible with zipfile.
zipfile can use passwords mainly when extracting, but does not support creating AES-encrypted ZIP files. pyzipper supports creating encrypted ZIP files.
zf.write(path1, path2)
path1: source file path to compress
path2: path inside the ZIP archive
pyzipper.AESZipFile
Encryption-related parameters
encryption=pyzipper.WZ_AES (AES encryption)
zf.setpassword(b"password") (set password)

7z format compression

import py7zr

with py7zr.SevenZipFile(dest + '.7z', 'w', password='password') as archive:
    archive.writeall(dest, '')

archive.writeall(path1, path2)
path1: source path to compress (can be a directory)
path2: target path inside the 7z archive; '' means archive root
Encryption parameter
password='password'

Python-Compression on KnightLi Blog

Python Compression: Create Encrypted Archives in ZIP and 7z

ZIP format compression

7z format compression