pyretest.py is a small program running in python, based on the zyre communication.
By running it, you first have to choose a username. After joining a group you can ask questions by writing the message in uppercase letters. Answers will be send in lowercase. The program is a good example of how you can use the difference between "shouting" and "whispering" a message.
First ZeroMQ:
sudo apt-get install libzmq-dev
Python dev tools
sudo apt-get install python-dev
install pip
sudo apt-get install python-pip
Then use pip to install pyre
sudo pip install https://github.com/zeromq/pyre/archive/master.zip
Run pyretest.py using python to start the program. For testing, you will need to run multiple instances of pyretest.py.
python pyretest.py