python - Pythonic asyncio communication with unreliable servers -


is there standard pattern using asyncio poll intermittent servers?

take following example: client reads every second unreliable tcp server. without error handling, async/await notation looks great:

class basictcpclient(object):     """tcp client without error handling."""     def __init__(self, ip, port):         self.ip = ip         self.port = port      async def connect(self):         reader, writer = await asyncio.open_connection(self.ip, self.port)         self.connection = {'reader': reader, 'writer': writer}      async def get(self, request):         self.connection['writer'].write(request.encode())         return await self.connection['reader'].readuntil(b'\n')   async def read():     client = basictcpclient('ip', 8000)     await client.connect()     while true:         print(await client.get('request'))         await asyncio.sleep(1)      ioloop = asyncio.get_event_loop()     try:         ioloop.run_until_complete(read())     except keyboardinterrupt:         pass

but doesn't handle disconnecting/reconnecting well. have working solution, it's approaching 100 loc , negates elegance of async/await.


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