#! /usr/bin/env python3

import asyncio
import logging

async def read_one(reader):
    await asyncio.wait_for(reader.read(1), timeout=None)


async def main():
    reader, writer = await asyncio.open_connection(host="ya.ru", port="80")
    try:
        await asyncio.wait_for(read_one(reader), timeout=0.1)
    except Exception as e:
        logging.critical("got exception: %r", e)
    try:
        await read_one(reader)
    except Exception as e:
        logging.critical("got exception: %r", e)


logging.basicConfig(level=logging.DEBUG,
                    format="%(asctime)s - %(filename)s:%(lineno)d - %(funcName)s() - %(levelname)s - %(message)s")

asyncio.get_event_loop().run_until_complete(main())