from pykakao import kakaotalk

kakao = kakaotalk()
if kakao.auth("EMAIL", "PASSWORD", "COMPUTER NAME", "DEVICE ID"):
    # computer name and device id are not important things. you can pass any string you want.
    print kakao.session_key
    print kakao.user_id
else:
    print "auth failed."

from pykakao import kakaotalk

kakao = kakaotalk("SESSION KEY", "DEVICE ID", USER ID)
if kakao.login():
    while True:
        packet = kakao.translate_response()
        
        if not packet:
            print "connection closed."

        if packet["command"] == "MSG":
            if packet["body"]["chatLog"]["authorId"] != kakao.user_id:
                kakao.write(packet["body"]["chatLog"]["chatId"], packet["body"]["chatLog"]["message"])
else:
    print "login failed."