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What happens if you try to add a new key-value pair to a dictionary using a key that already exists in the dictionary? The new value overwrites the existing value An error is raised The dictionary becomes immutable The new value is appended to the existing value

Question

What happens if you try to add a new key-value pair to a dictionary using a key that already exists in the dictionary? The new value overwrites the existing value An error is raised The dictionary becomes immutable The new value is appended to the existing value

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Solution

If you try to add a new key-value pair to a dictionary using a key that already exists in the dictionary, the new value will overwrite the existing value. No error is raised, the dictionary does not become immutable, and the new value is not appended to the existing value.

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