from chaofeng import Frame, Server

class HelloFrame(Frame):

def initialize(self):
    self.write('Hello,World!\r\n')
    self.pause()
    self.close()

if __name__ == '__main__' :
    s = Server(HelloFrame)
    s.run()

git clone https://github.com/argolab/chaofeng.git
cd chaofeng
python test.py

In client:

telnet localhost 5000