How do I add items to a dictionary in Python?

How do I add items to a dictionary in Python?

You can add items to a dictionary using the syntax dict[key] = value. For example, my_dict['new_key'] = 'new_value'.

Can I add multiple items at once?

Yes, you can use the update() method to add multiple items. For example, my_dict.update({'key1': 'value1', 'key2': 'value2'}).

What happens if the key already exists?

If the key already exists, the value will be updated to the new value you provide.

Can you show me an example?

Sure! Here's an example:

my_dict = {'a': 1, 'b': 2}
my_dict['b'] = 3  # Updates the value for key 'b'
my_dict['c'] = 4  # Adds a new key 'c'
print(my_dict)  # Output: {'a': 1, 'b': 3, 'c': 4}