What are some examples of dictionaries in Python?
Dictionaries in Python are collections of key-value pairs. For example: {'name': 'Alice', 'age': 25}.
Can you show me how to access values in a dictionary?
Sure! You can access values using their keys. For example, if you have my_dict = {'name': 'Alice'}
, you can get the name with my_dict['name']
.
What if the key doesn't exist?
If the key doesn't exist, it will raise a KeyError. You can use the get()
method to avoid this, like my_dict.get('key', 'default_value')
.
How do I add a new key-value pair?
You can add a new key-value pair by simply assigning a value to a new key, like this: my_dict['new_key'] = 'new_value'
.
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