test_connection.py

from ib.opt import Connection

def print_message_from_ib(msg):
    print(msg)

def main():
    conn = Connection.create(port=7496, clientId=994)
    conn.registerAll(print_message_from_ib)
    conn.connect()

    #In future blog posts, this is where we'll write code that actually does
    #something useful, like place orders, get real-time prices, etc.

    import time
    time.sleep(1) #Simply to give the program time to print messages sent from IB
    conn.disconnect()

if __name__ == "__main__": main()