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The python WhatsApp library
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.gitignore updated .gitignore Mar 31, 2016
.travis.yml Tox tests + importlib dep in py26 Mar 30, 2016
LICENSE Fixed pip install Apr 16, 2016 Fixed python2 support Dec 28, 2017
yowsup-cli Bumped to 2.4.102/2.0.15 Apr 1, 2016

Yowsup 2 Build Status Join the chat at

Updates (December 30, 2017)

Yowsup v2.5.7 is out, See release notes


Yowsup opened WhatsApp service under platforms!

Yowsup is a Python library that enables you to build applications which use the WhatsApp service. Yowsup has been used to create two clients: 1) An unofficial WhatsApp client Nokia N9 through the Wazapp project which was in use by more than 200K users; 2) Another fully featured unofficial client for Blackberry 10.



  • Requires python2.6+, or python3.0 +
  • Required python packages: python-dateutil,
  • Required python packages for end-to-end encryption: protobuf, pycrypto, python-axolotl-curve25519
  • Required python packages for yowsup-cli: argparse, readline (or pyreadline for windows), pillow (for sending images)

Install using to pull all Python dependencies, or pip:

pip install yowsup2


You need to have installed Python headers (probably from python-dev package) and ncurses-dev, then run

python install

Because of a bug with python-dateutil package you might get permission error for some dateutil file called requires.txt when you use yowsup (see this bug report) to fix you'll need to chmod 644 that file.

FreeBSD (*BSD)

You need to have installed: py27-pip-7.1.2(+), py27-sqlite3-2.7.11_7(+), then run

pip install yowsup2


python install

Administrators privileges might be required, if so then run with 'sudo'


  • Install mingw compiler
  • Add mingw to your PATH
  • In PYTHONPATH\Lib\distutils create a file called distutils.cfg and add these lines:
  • Install gcc: mingw-get.exe install gcc
  • Install zlib
  • python install

If pycrypto fails to install with some "chmod error". You can install it separately using something like easy_install

or for python3 from:

and then rerun the install command again

Special thanks

Special thanks to:

and everyone else on the WhatsAPI project for their contributions to yowsup and the amazing effort they put into WhatsAPI, the PHP WhatsApp library

Special thanks goes to all other people who use and contribute to the library as well.

Please read this if you'd like to contribute to yowsup 2.0



As of January 1, 2015 yowsup is licensed under the GPLv3+:

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