I am creating an ZIP file with ZipFile in Python 2.5, it works OK so far: import zipfile, os
locfile = "test.txt"
loczip = os.path.splitext (locfile)[0] + ".zip"
zip = zipfile.ZipFile (loczip, "w")
zip.write (locfile)
zip.close()
But I couldn't find how to encrypt the files in the ZIP file. I could use system and call PKZIP -s, but I suppose there must be a more "Pythonic" way. I'm looking for an open source solution. martineau 115k25 gold badges160
silver badges284 bronze badges asked Aug 20, 2008 at 0:16 1 I created a simple library to create a password encrypted zip file in python. - here import pyminizip
compression_level = 5 # 1-9
pyminizip.compress("src.txt", "dst.zip", "password", compression_level)
The library requires zlib. I have checked that the file can be extracted in WINDOWS/MAC. answered Apr 17, 2013 at 1:39 Shin AoyamaShin Aoyama 4524 silver
badges5 bronze badges 3 The duplicate question: Code to create a password encrypted zip file? has an answer that recommends using 7z instead of zip. My experience bears this out. Copy/pasting the answer by @jfs here too, for completeness: To create encrypted zip archive (named 'myarchive.zip') using open-source 7-Zip utility: rc = subprocess.call(['7z', 'a', '-mem=AES256', '-pP4$$W0rd', '-y', 'myarchive.zip'] +
['first_file.txt', 'second.file'])
To install 7-Zip, type: $ sudo apt-get install p7zip-full
To unzip by hand (to demonstrate compatibility with zip
utility), type: $ unzip myarchive.zip
And enter P4$$W0rd at the prompt. Or the same in Python 2.6+: >>> zipfile.ZipFile('myarchive.zip').extractall(pwd='P4$$W0rd')
This thread is a little bit old, but for people looking for an answer to this question in 2020/2021. Look at pyzipper A 100% API compatible replacement for Python’s zipfile that can read and write AES encrypted zip files.
7-zip is also a good choice, but if you do not want to use subprocess, go with pyzipper... answered Feb 11, 2021
at 16:27 edifedif 731 silver badge8 bronze badges 1 pyminizip works great in creating a password protected zip file. For unziping ,it fails at some situations. Tested on python 3.7.3
Here, i used pyminizip for encrypting the file. import pyminizip
compression_level = 5 # 1-9
pyminizip.compress("src.txt",'src', "dst.zip", "password", compression_level)
For unzip, I used zip file
module: from zipfile import ZipFile
with ZipFile('/home/paulsteven/dst.zip') as zf:
zf.extractall(pwd=b'password')
answered Aug 8, 2019 at 4:47 Smack AlphaSmack Alpha 1,5821 gold badge14 silver badges33 bronze badges You can use pyzipper for this task and it will work great when you want to encrypt a zip file or
generate a protected zip file.pip install pyzipper
import pyzipper
def encrypt_():
secret_password = b'your password'
with pyzipper.AESZipFile('new_test.zip',
'w',
compression=pyzipper.ZIP_LZMA,
encryption=pyzipper.WZ_AES) as zf:
zf.setpassword(secret_password)
zf.writestr('test.txt', "What ever you do, don't tell anyone!")
with pyzipper.AESZipFile('new_test.zip') as zf:
zf.setpassword(secret_password)
my_secrets = zf.read('test.txt')
The strength of the AES encryption can be configure to be 128, 192 or 256 bits. By default it is 256 bits. Use the setencryption() method to specify the encryption kwargs:
def encrypt_():
secret_password = b'your password'
with pyzipper.AESZipFile('new_test.zip',
'w',
compression=pyzipper.ZIP_LZMA) as zf:
zf.setpassword(secret_password)
zf.setencryption(pyzipper.WZ_AES, nbits=128)
zf.writestr('test.txt', "What ever you do, don't tell anyone!")
with pyzipper.AESZipFile('new_test.zip') as zf:
zf.setpassword(secret_password)
my_secrets = zf.read('test.txt')
Official Python ZipFile documentation is available here: https://docs.python.org/3/library/zipfile.html
martineau 115k25 gold badges160 silver badges284 bronze badges answered Dec 17, 2021 at 6:57 @tripleee's answer helped me, see my test below. This code works for me on python 3.5.2 on Windows 8.1 ( 7z path added to
system). rc = subprocess.call(['7z', 'a', output_filename + '.zip', '-mx9', '-pSecret^)'] + [src_folder + '/'])
With two parameters: -mx9 means max compression-pSecret^) means password is Secret^). ^ is escape for ) for Windows OS, but when you unzip, it will need type in the ^.
Without ^ Windows OS will not apply the password when 7z.exe creating the zip file. Also, if you want to use -mhe switch, you'll need the file format to be in 7z instead of zip. I
hope that may help. answered Oct 20, 2016 at 21:18 zqcolorzqcolor 3222 gold badges4 silver badges12 bronze badges 2022 answer: I believe this
is an utterly mundane task and therefore should be oneliner. I abstracted away all the frevolous details in a library that is as powerfull as a bash terminal. from crocodile.toolbox import Path
file = Path(r'my_string_path')
result_file = file.zip(pwd="lol", use_7z=True)
- when the 7z flag is raised, it gets called behind the scenes.
- You don't need to learn 7z command line syntax.
- You don't need to worry about installing 7z, does that automatically if it's not installed. (tested on windows so far)
answered Jun 24 at
13:40
Alex DeftAlex Deft 2,29413 silver badges26 bronze badges You can use the Chilkat library. It's commercial, but has a free evaluation and seems pretty nice. Here's an example I got from here: import chilkat
# Demonstrates how to create a WinZip-compatible 128-bit AES strong encrypted zip
zip = chilkat.CkZip()
zip.UnlockComponent("anything for 30-day trial")
zip.NewZip("strongEncrypted.zip")
# Set the Encryption property = 4, which indicates WinZip compatible AES encryption.
zip.put_Encryption(4)
# The key length can be 128, 192, or 256.
zip.put_EncryptKeyLength(128)
zip.SetPassword("secret")
zip.AppendFiles("exampleData/*",True)
zip.WriteZip()
kay 24.8k10 gold badges96 silver badges139 bronze badges answered Aug 20, 2008 at 1:20 Harley HolcombeHarley Holcombe
169k15 gold badges69 silver badges63 bronze badges 1
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