Delaying Print Output with asyncio Coroutines in Python

Last update on April 02 2025 05:25:09 (UTC/GMT +8 hours)

1. Async Print with Delay

Write a Python program that creates an asynchronous function to print "Python Exercises!" with a two second delay.

Sample Solution:

Code:

import asyncio

async def print_delayed_message():
    await asyncio.sleep(2)  # Wait for 2 seconds
    print("Python Exercises!")

# Create an event loop and run the asynchronous function
async def main():
    await print_delayed_message()

# Run the event loop
asyncio.run(main())

Output:

Python Exercises!

Explanation:

In the above exercise, the "delayed_message()" function is defined as an asynchronous coroutine. It uses the await asyncio.sleep(2) statement to pause the execution of the coroutine for 2 seconds. Then, "Python Exercises!" is printed to the console.

The main coroutine runs the delayed_message coroutine. The asyncio.run(main()) line starts the event loop, which executes the asynchronous operations defined in the coroutines.

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program that defines an asynchronous function to print "Hello, Async World!" after a delay of 2 seconds using asyncio.sleep, and then call it from an event loop.
• Write a Python function that asynchronously prints "Delayed Message" after waiting for 2 seconds and then returns a confirmation string.
• Write a Python script that creates an async function which prints "Async in Action!" with a two-second delay, and then schedules this function multiple times concurrently.
• Write a Python program to implement an asynchronous function that prints a custom message after a 2-second delay and logs the time before and after the print.

Python Code Editor :

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