I am trying to create an async Python app that subscribes to a Kafka topic and prints out the received messages via the asyncio.Task named echo_kafka_msgs_task.
At the same time, there is a second asyncio.Task named ping_task that prints out an incrementing integer every second.
However, the integer is only printed out once, and no longer prints out when echo_kafka_msgs_task has started.
Why is this happening, and how can we fix this?
import asyncio
import json
import discord
from kafka import KafkaConsumer
class DiscordBot(discord.Client):
def __init__(self):
super().__init__()
self.consumer = KafkaConsumer(
"my_topic",
value_deserializer=lambda m: json.loads(m.decode('utf-8'))
)
async def on_ready(self):
ping_task = asyncio.create_task(self.ping())
echo_kafka_msgs_task = asyncio.create_task(self.echo_kafka_msgs())
async def echo_kafka_msgs(self):
while True:
self._logger.info("Waiting for new messages...")
for msg in self.consumer:
print(msg.value)
async def ping(self):
i = 0
while True:
print("i=", i)
i += 1
await asyncio.sleep(1)
if __name__ == '__main__':
client = DiscordBot()
client.run("my_token")
