/
echo.py
40 lines (32 loc) · 1.03 KB
/
echo.py
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import asyncio
import collections
@asyncio.coroutine
def handle_echo(reader, writer):
loop = asyncio.get_event_loop()
data = yield from reader.read(100)
message = data.decode()
addr = writer.get_extra_info('peername')
loop.history[addr[0]].append(message.strip())
writer.write(data)
yield from writer.drain()
writer.close()
def run(host='localhost', port=8000):
loop = asyncio.get_event_loop()
loop.history = collections.defaultdict(list)
coro = asyncio.start_server(handle_echo, host, port, loop=loop)
loop.server = loop.run_until_complete(coro)
interface = '{}:{}'.format(*loop.server.sockets[0].getsockname())
print('The echo service is being served on {}'.format(interface))
try:
loop.run_forever()
except KeyboardInterrupt:
pass
def main(args):
server, = args[1:]
if ':' not in server:
return run(port=int(server))
host, port = server.split(':')
return run(host, int(port))
if __name__ == '__main__':
import sys
main(sys.argv)