Python Coding Challenge - Question with Answer (ID -020626)

 

Explanation:

🔹 Step 1: Define Function

def f():

    return f

A function named:

f

is created.

Important part:

return f

The function returns itself.

So if you call:

f()

you get:

f

(the function object itself)

🔹 Step 2: Evaluate First f()

f()

Function executes:

return f

Result:

f

So expression becomes:

f()()() is f

↓

f()() is f

because first f() returned f.

🔹 Step 3: Evaluate Second ()

Now we have:

f()()

Which is:

f()

again.

Function returns:

f

Expression becomes:

f() is f

🔹 Step 4: Evaluate Third ()

Again:

f()

returns:

f

Expression becomes:

f is f

🔹 Step 5: Evaluate is

Now Python checks:

f is f

is checks:

Are both references pointing

to the exact same object?

Left side:

f

Right side:

f

Same function object.

Result:

True

🔹 Step 6: Print Result

print(True)

Output:

True

Final Output:

True

Book: Data Structures and Algorithm Design using Python