How do I access values in a Python dictionary?

How do I access values in a Python dictionary?

You can access values in a Python dictionary using the key associated with that value. For example, if you have a dictionary like my_dict = {'name': 'Alice', 'age': 25}, you can access the age with my_dict['age'].

What if the key doesn't exist?

If the key doesn't exist, trying to access it will raise a KeyError. You can use the get() method to avoid this, which returns None or a default value if the key is not found. For example, my_dict.get('height', 'Not found').

Can I loop through the values in a dictionary?

Yes, you can loop through the values using a for loop. For example: for value in my_dict.values(): print(value) will print all the values in the dictionary.

What about nested dictionaries?

For nested dictionaries, you can access values by chaining keys. For example, if you have nested_dict = {'person': {'name': 'Alice', 'age': 25}}, you can access the name with nested_dict['person']['name'].