Python Coding challenge - Day 713| What is the output of the following Python Code?

 Code Explanation:

1) import asyncio

Imports Python’s async I/O library.

Provides the event loop and helpers (like asyncio.run) to execute coroutines.

2) async def f():

Defines coroutine function f.

Calling f() does not run it; it returns a coroutine object that can be awaited.

inside f

return 10

When this coroutine runs (i.e., when awaited), it immediately completes and produces the value 10.

3) async def g():

Defines another coroutine function g.

inside g

x = await f()

return x + 5

f() is called to get its coroutine object.

await f() suspends g, runs f to completion on the event loop, and receives the returned value (10) which is assigned to x.

Then g returns x + 5, i.e. 10 + 5 = 15.

4) print(asyncio.run(g()))

asyncio.run(g()):

Creates a new event loop,

Schedules and runs coroutine g() until it finishes,

Returns g()’s result (here 15),

Closes the event loop.

print(...) prints that returned value.

Execution flow (step-by-step)

Program defines f and g (no code inside them runs yet).

asyncio.run(g()) starts an event loop and runs g.

Inside g, await f() runs f, which returns 10.

g computes 10 + 5 and returns 15.

asyncio.run returns 15, which gets printed.

Final output

15

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