Python Coding challenge - Day 702| What is the output of the following Python Code?

 

Code Explanation:

1) import asyncio

Imports the asyncio library.

asyncio is Python’s built-in library for asynchronous programming (concurrency using coroutines instead of threads).

2) async def f():

Defines an asynchronous function (coroutine).

Unlike a normal function, calling f() doesn’t run it immediately — it returns a coroutine object.

To actually run it, you need an event loop (await inside another coroutine, or asyncio.run at the top level).

3) return 5

When awaited, this coroutine will finish immediately and produce the value 5.

This is equivalent to a synchronous function returning 5, except it’s async-compatible.

4) asyncio.run(f())

Starts an event loop, runs the coroutine f(), and waits until it completes.

When f() completes, it returns 5.

5) print(asyncio.run(f()))

Prints the value returned by the coroutine, which is 5.

Final Output

5

Download Book - 500 Days Python Coding Challenges with Explanation