`await`

In Python, the await keyword pauses the execution of a coroutine until the result is available, allowing other tasks to run concurrently. It’s a crucial component in asynchronous programming, enabling you to write non-blocking code. The await keyword can only be used inside an async function or another coroutine.

Python `await` Keyword Examples

Here’s a quick example demonstrating how to use the await keyword:

Pythonhello.py
      
    
import asyncio

async def greet():
    print("Hello")
    await asyncio.sleep(1)
    print("World!")

asyncio.run(main())

Inside greet(), the await keyword waits one second using asyncio.sleep(1). Other asynchronous tasks can run during the waiting period, which is the base of the non-blocking behavior.

Python `await` Keyword Use Cases

Waiting for asynchronous I/O operations, such as reading from or writing to a file or network
Pausing execution in coroutines to prevent blocking the event loop
Scheduling concurrent execution of multiple coroutines