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Concurrency & performance

asyncio, threading, multiprocessing, and profiling-friendly performance patterns.

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Concurrency & performance easy

How to Signal asyncio Workers to Stop with an Event in Python

Use an asyncio.Event to coordinate graceful shutdown of multiple concurrent worker tasks in Python.

asyncio events concurrency
Python 
import asyncio
import random

async def worker(name, stop_event):
    while not stop_event.is_set():
        await asyncio.sleep(random.uniform(0.1, 0.5))
        print(f"Worker {name} processing...")
    print(f"Worker {name} stopped.")

async def main():
    stop_event = asyncio.Event()
    workers = [asyncio.create…
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