Question #5
Multiple Choice
Which statement adds a new item to a dictionary?
O books.insert({5:2})
O books.add({5:2})
O books.update({5:2})
O books.append({5:2})

The statement adds a new item to a dictionary is option C: books.update({5:2}).

Python does not support the add(), append(), or insert() methods for adding items to dictionaries. As an alternative, you may add an item to a dictionary by first adding a new index key and then giving it a specific value.

The update() method of dictionary tells more about what is to be added that is the new keys to an existing dictionary.

To add new keys to a dictionary, one need to add an item to a dictionary in Python that has already exist such as:

default_data = {

   'item1': 1,

   'item2': 2,

}

So if you  want to add a any kind of new item such that:

default_data = default_data + {'item3': 3}

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