How do I work with nested data structures in Python?

How do I work with nested data structures in Python?

In Python, nested data structures can include lists, dictionaries, or a combination of both. What specific structure are you working with?

I'm trying to access elements in a nested dictionary. Can you show me an example?

Sure! Here's an example: if you have a dictionary like data = {'key1': {'subkey1': 'value1'}}, you can access 'value1' using data['key1']['subkey1'].

What if I want to loop through all the items in a nested dictionary?

You can use a nested loop. For example:

for key, value in data.items():
    if isinstance(value, dict):
        for subkey, subvalue in value.items():
            print(subkey, subvalue)