socktest.py

#!/usr/bin/env python
import json
import socket
import sys

HOST, PORT = "127.0.0.1", 7777

def main(argv):
    if len(argv) < 1:
        print('main.py <server ip address>')
        sys.exit(2)
    else:
        HOST = argv[0]

   # Initialize network connection here
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # Create a socket (SOCK_STREAM means a TCP socket)
    try:
        sock.connect((HOST, PORT))
    except socket.error, msg:
        print("Could not connect to server! Error: %s" % msg)
        sys.exit(-1)

    # Main update loop
    running = True
    while running == True:
        # Send the result to iPhone
        '''
        Wrap processed data as json
            id: message id
            cnt: packet counter
            cat: category of sound
            int: intensity of sound
            cont: content of a sound
            dir: direction of the sound
            isFinal: a boolean terminal indicator
        '''
        # A container for processed data
        data = {}

        # Temporary test data
        ID = 2
        cnt = 1
        cat = 'SPEECH'
        inte = 3.0
        direc = 'BACKLEFT'

        try:
            cont = raw_input("Input data to send to server: ")
        except KeyboardInterrupt:
            print("Ctrl+C pressed. Client terminating...")
            running = False

        data['id'] = ID
        data['cnt'] = cnt
        data['cat'] = cat
        data['int'] = inte
        data['cont'] = cont
        data['dir'] = direc
        data['isFinal'] = True

        data = json.dumps(data)

        sock.sendall(bytes(data + "\n"))

    # Shutdown network connection
    sock.close()

if __name__ == '__main__':
    main(sys.argv[1:])