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#!/usr/bin/env python
"""
A simple Telnet application that asks for input and responds.
The interaction function is a prompt_toolkit coroutine.
Also see the `hello-world-asyncio.py` example which uses an asyncio coroutine.
That is probably the preferred way if you only need Python 3 support.
"""
from __future__ import unicode_literals
from prompt_toolkit.contrib.telnet.server import TelnetServer
from prompt_toolkit.eventloop import From, get_event_loop
from prompt_toolkit.shortcuts import prompt, clear
import logging
# Set up logging
logging.basicConfig()
logging.getLogger().setLevel(logging.INFO)
def interact(connection):
clear()
connection.send('Welcome!\n')
# Ask for input.
result = yield From(prompt(message='Say something: ', async_=True))
# Send output.
connection.send('You said: {}\n'.format(result))
connection.send('Bye.\n')
def main():
server = TelnetServer(interact=interact, port=2323)
server.start()
get_event_loop().run_forever()
if __name__ == '__main__':
main()
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