Python Coding Challenge - Question with Answer (ID -290526)

 

Code Explanation:

🔹 Step 1: Create Generator

x = (i for i in [1,2,0,5])

A generator is created.

Values inside generator:

1, 2, 0, 5

⚠️ Generator does NOT store all values in memory.

It produces values one by one when needed.

🔹 Step 2: Execute all(x)

all(x)

What does all() do?

It checks:

Are all values truthy?

If it finds a falsy value:

0

False

None

""

[]

{}

it immediately stops.

🔹 Step 3: all() Reads First Value

Generator gives:

1

Check:

bool(1) → True

Continue.

Generator position:

[2,0,5]

🔹 Step 4: all() Reads Second Value

Generator gives:

2

Check:

bool(2) → True

Continue.

Generator position:

[0,5]

🔹 Step 5: all() Reads Third Value

Generator gives:

0

Check:

bool(0) → False

Now all() immediately returns:

False

and stops reading further.

⚠️ Important:

5 is NOT consumed.

Generator position now:

[5]

🔹 Step 6: Execute next(x)

next(x)

Generator continues from where it stopped.

Next available value:

5

So:

next(x) → 5

🔹 Step 7: Print Result

print(5)

Output:

5

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