在Python中使用Twitch IRC时“通过对等方重置连接”

Question

I try to write my own bot in Python to connect and interact with the Twitch-chat via its IRC interface. I have the connection and can receive and send data. I also answer the incoming PINGs with PONG (they get send after around 5 minutes). But after about 3 minutes of inactivity (so before I even get a PING) the connection fails with

socket.error: [Errno 104] Connection reset by peer

I use the socket module in Python for the connection. The error occurs when the recv() method is called on my socket.

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Some things I was able to figured out:

• Before the connection fails, their is no incoming (unanswered) PING.

• The time between the last chat message and the disconnect seams to be around 3 minutes every time. And its enough to receive something (linke a chat-message by someone else) to reset this timer. I don't have to send anything myself.

• I first thought that I time out myself because I don't receive anything for to long. That doesn't seem to be the case, because if I set a lower timeout time for socket.recv() I receive socket.timeout: timed out , not the error shown above.

• I think I don't miss any data send to me because all chat messages come through. But I post my main loop for receiving data below just to be sure.

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My Question is now, why does the connection fail and how can I prevent this?

I have the feeling this is a vague question. It's the first time I try to work with an IRC interface and I don't rely know how to get more information on what exactly the problem is.

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Just in case, here's the mains loop I use to receive data. I think this works fine because all the chat messages come through. But maybe there's a mistake and I miss some incoming data (like a PING).

readbuffer = ''
while True:
    readbuffer = readbuffer + s.recv(1024)
    temp = string.split(readbuffer, '\n')
    readbuffer = temp.pop()
    for line in temp:
        print(line)
        # PING/PONG
        if "PING :tmi.twitch.tv" in line:
            print("PONG :tmi.twitch.tv")
            s.send(line.replace('PING', 'PONG'))

Here s is a socket() form the socket module.

Answer 1

Pinging the server myself every 2 minutes solved the problem. I just added this function

import time, threading

def sendPing(s):
    print('sending PING')
    s.send("PING :tmi.twitch.tv")
    threading.Timer(120, sendPing, [s]).start()

sendPing(s)

before the main loop.

Thanks to ChatterOne for the tip.