Twisted irc python bot - buffering messages

Question

"Why does it take a long time for data I send with transport.write to arrive at the other side of the connection?"

Twisted can only send data after you give up control of execution to the reactor. For example, if you have an infinite loop writing data to a transport, the data will never actually be sent since control will never leave your code and return to the reactor."

I found this in the twisted FAQ, it is exactly as my problem. Is there a way to fix this so I can send messages instantly and not wait for the loop to finish?

There really isn't a easy way to flush outgoing Twisted buffers, you should just keep execution light. — Jakob Bowyer, May 31 '12 at 11:18
But I need it for my bot. I need to write 10 lines (1 line per 2 sec) with a command. It isn't possible to do this since twisted just writes all of the lines in a second and it gets excess flood. — Bubo, May 31 '12 at 11:22
I actually fixed it, it seems there is a lineRate which you can set. It works. :) thanks anyway everyone — Bubo, May 31 '12 at 11:52

score 4 · Accepted Answer · answered May 31 '12 at 16:42

No. You cannot send messages instantly. Control must return to the event loop. Fortunately, the problem you're really trying to solve (inferred from comments on the question), rate limiting the messages you send, doesn't require being able to do this. Instead, stop using time.sleep in a loop and start using reactor.callLater to delay the execution of code. Or use features of the IRC API which do these things for you (which you seem to have discovered already, lineRate).

Twisted irc python bot - buffering messages

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