[python-tulip] How to write network server in coroutine style?

[yi huang]

The example in asyncio documentation only shows how to write echo server in
twisted style, and i wonder how can i write server handler as a coroutine
like in gevent, something like:

def handle_client(transport):
    while True:
        buf = yield from transport.read(4096)
        # handle request

        # read some result from database without blocking other coroutine.
        result = yield from block_read_from_database()

loop.create_server(handle_client, '127.0.0.1', 3000)


Thanks.

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