what happens if you try to add a new key to a dictionary that already exists? the key and its associated value will be updated. the key and its associated value will be added. the key will be added, but the associated value will remain unchanged. an error will occur.
what happens if you try to add a new key to a dictionary that already exists? the key and its associated value will be updated. the key and its associated value will be added. the key will be added, but the associated value will remain unchanged. an error will occur.
Answer: If you try to add a new key to a dictionary that already exists, the key and its associated value will be updated. In other words, if the key you’re trying to add already exists in the dictionary, the new value you provide will replace the existing value associated with that key. This behavior allows you to modify the value associated with an existing key in the dictionary.
If the key doesn’t exist in the dictionary, a new key-value pair will be added. However, if the key already exists, the value will be updated.