带有aiohttp的aiohttp-json-rpc周期性地引发异常“无效的HTTP方法”

Question

我正在使用：

aiohttp==3.4.4
aiohttp-json-rpc==0.11.2
Python 3.7.1 

我写了简单的json rpc客户端和服务器。问题在于服务器会定期引发异常。它可以继续工作，但有时会出现控制台异常：

我该如何解决？

Error handling request
Traceback (most recent call last):
  File "/home/se7en/.pyenv/versions/3.7.1/lib/python3.7/site-packages/aiohttp/web_protocol.py", line 242, in data_received
    messages, upgraded, tail = self._request_parser.feed_data(data)
  File "aiohttp/_http_parser.pyx", line 523, in aiohttp._http_parser.HttpParser.feed_data
aiohttp.http_exceptions.BadStatusLine: invalid HTTP method

server.py

from aiohttp import web
import sys
from aiohttp.web import Application
from aiohttp_json_rpc import JsonRpc
import asyncio

from aiohttp_json_rpc.communicaton import JsonRpcRequest


async def ping(request):
    print(type(request))
    print('called')
    print(request.params)
    return 'pong'


    if __name__ == '__main__':
        loop = asyncio.get_event_loop()

        rpc = JsonRpc()
        rpc.add_methods(
            ('', ping),
        )

        app = Application()
        app.router.add_route('*', '/', rpc)

        #handler = app.make_handler()
        app.router.add_get('/ping', ping)

        #server = loop.run_until_complete(
        #    loop.create_server(handler, '0.0.0.0', 8080))

        web.run_app(app, host='0.0.0.0', port=8080)
        #loop.run_forever()

client.py

import asyncio
from aiohttp_json_rpc import JsonRpcClient


async def ping_json_rpc():
    """Connect to ws://localhost:8080/rpc, call ping() and disconnect."""
    rpc_client = JsonRpcClient()
    try:
        await rpc_client.connect('0.0.0.0', 8080, '/')
        call_result = await rpc_client.call('ping', params={'x':1,'y':2})
        print(call_result)  # prints 'pong' (if that's return val of ping)
        call_result = await rpc_client.call('get_methods')
        print(call_result)
    finally:
        await rpc_client.disconnect()


asyncio.get_event_loop().run_until_complete(ping_json_rpc())