How do I add values to a dictionary in Python?

How do I add values to a dictionary in Python?

You can add values to a dictionary by using the key in square brackets or the update() method. For example: my_dict['key'] = value.

Can I add multiple values at once?

Yes, you can use the update() method to add multiple key-value pairs at once. For example: my_dict.update({'key1': value1, 'key2': value2}).

What happens if the key already exists?

If the key already exists, the new value will overwrite the existing value associated with that key.

Can you show me a complete example?

Sure! Here's a complete example:

my_dict = {'a': 1, 'b': 2}
my_dict['c'] = 3  # Adding a new key
my_dict.update({'a': 4, 'd': 5})  # Updating 'a' and adding 'd'
print(my_dict)  # Output: {'a': 4, 'b': 2, 'c': 3, 'd': 5}