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math2001/Usage.md

Created April 26, 2018 02:35
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Possibly the simplest version of a chat server made with Python
Raw
simple-asyncio-chat.py
import asyncio
clients = {}
async def handle_new_client(reader, writer):
writer.write("Welcome to our server!\n".encode('utf-8'))
peername = '{}:{}'.format(*writer.get_extra_info("peername"))
clients[peername] = reader, writer
while True:
b = await reader.readline()
if not b:
del clients[peername]
return
for r, w in clients.values():
w.write("{}: {}".format(peername, b.decode('utf-8')).encode('utf-8'))
await w.drain()
loop = asyncio.get_event_loop()
server = loop.run_until_complete(asyncio.start_server(handle_new_client, "", 9877))
loop.run_forever()
Raw
Usage.md

You can build a client in Python if you feel like it, but you might as well just use telnet:

$ telnet localhost 9877
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