Handling Dictionary KeyError Exceptions

KeyError occurs when you attempt to access a key that does not exist in a dictionary.

The code below demonstrates a KeyError by attempting to access a non-existent age key in a dictionary.

Example of KeyError Occurrence

user_info = {
    "username": "user123",
    "email": "user123@example.com",
    "location": "New York"
}

# "age" key does not exist, KeyError raised
user_age = user_info["age"]

To prevent KeyError, you should verify the existence of a key in the dictionary before attempting to access it.

You can achieve this by using the in operator or utilizing the get() method.

In the next lesson, we will delve deeper into the in operator and get() method.

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