This question tests your understanding of Python’s integer caching mechanism.
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Question: Integer Caching
What will be the output of the code below?
a = 256
b = 256
print(a is b)
a = 257
b = 257
print(a is b)Answer: B
Explanation:
In Python, small integer objects in the range -5 to 256 are preallocated in memory for performance reasons.
When a and b are both set to 256, they reference the same memory location, so a is b returns True.
For integers outside this range, such as 257, separate memory locations are allocated, so a is b returns False when a and b are both set to 257.