Solution:Step 1: Understand None is a singletonIn Python, None is a singleton object, so all variables assigned None point to the same object.Step 2: Check identity assertionThe assertion assert obj1 is obj2 checks if both variables point to the same object, which they do.Final Answer:The assertion

[Solved] Given the code:obj1 = None obj2 = None assert obj1 is obj2What will happen when this pytest assertion runs? | PyTest

PyTest - Writing Assertions

Given the code:

obj1 = None
obj2 = None

assert obj1 is obj2

What will happen when this pytest assertion runs?

ASyntaxError due to wrong assertion

BThe assertion fails because None is not an object

CThe assertion passes because both are the same None object

DThe assertion fails because obj1 and obj2 are different None instances

Step-by-Step Solution

Solution:

Step 1: Understand None is a singleton
In Python, None is a singleton object, so all variables assigned None point to the same object.
Step 2: Check identity assertion
The assertion assert obj1 is obj2 checks if both variables point to the same object, which they do.
Final Answer:
The assertion passes because both are the same None object -> Option C
Quick Check:
None is None always True [OK]

Quick Trick: Remember: None is always the same object in Python [OK]

Common Mistakes:

MISTAKES

Thinking None creates new objects each time
Confusing identity with equality
Expecting assertion failure for None identity

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Given the code:

Step 1: Understand None is a singleton

Step 2: Check identity assertion

Final Answer:

Quick Check:

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