What are keys and values in Python dictionaries?
An example of an AI chatbot conversation about Python dictionaries, focusing on keys and values.
What are keys and values in Python dictionaries?
In Python dictionaries, keys are unique identifiers for values. Each key maps to a specific value.
Can you give me an example of a dictionary with keys and values?
Sure! Here's an example: my_dict = {'name': 'Alice', 'age': 25}. Here, 'name' and 'age' are keys, and 'Alice' and 25 are their corresponding values.
How do I access a value using its key?
You can access a value by using its key in square brackets. For example, my_dict['name'] will return 'Alice'.
What happens if I use a key that doesn't exist?
If you use a key that doesn't exist, Python will raise a KeyError. You can avoid this by using the get() method.
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