[Solved] An AI itinerary code snippet:itinerary = {'Day 1': ['Museum', 'Lunch'], 'Day 2': ['Beach', 'Dinner']}Which error will occur if you try to access itinerary['Day 3']? | AI for Everyone

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An AI itinerary code snippet:
itinerary = {'Day 1': ['Museum', 'Lunch'], 'Day 2': ['Beach', 'Dinner']}
Which error will occur if you try to access itinerary['Day 3']?

ASyntaxError

BReturns an empty list

CKeyError because 'Day 3' does not exist

DReturns null

Step-by-Step Solution

Solution:

Step 1: Understand dictionary key access
Accessing a missing key in a dictionary raises a KeyError.
Step 2: Check if 'Day 3' exists
'Day 3' is not in the itinerary keys.
Final Answer:
KeyError because 'Day 3' does not exist -> Option C
Quick Check:
Missing key access = KeyError [OK]

Quick Trick: Accessing missing keys causes KeyError in dictionaries [OK]

Common Mistakes:

MISTAKES

Expecting empty list or null instead of error
Confusing syntax errors with runtime errors

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An AI itinerary code snippet:

Step 1: Understand dictionary key access

Step 2: Check if 'Day 3' exists

Final Answer:

Quick Check:

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