[Solved] This Python Lambda handler code causes an error:def handler(event, context): return event['value'] + 5What is the likely cause? | AWS

AWS - Lambda

This Python Lambda handler code causes an error:

def handler(event, context):
    return event['value'] + 5

What is the likely cause?

AContext object is required for addition

BMissing return statement

CLambda does not support addition

D'value' is missing or not a number in event

Step-by-Step Solution

Solution:

Step 1: Check event dictionary access and type
If 'value' key is missing or its value is not a number, adding 5 causes an error.
Step 2: Eliminate other options
Return statement exists; context is not used for addition; Lambda supports addition.
Final Answer:
'value' is missing or not a number in event -> Option D
Quick Check:
Type or missing key causes error [OK]

Quick Trick: Check event keys and types before operations [OK]

Common Mistakes:

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This Python Lambda handler code causes an error: