What are common errors when working with nested dictionaries in Python?

What are some common errors I might encounter when using nested dictionaries in Python?

Some common errors include KeyError when accessing non-existent keys, and TypeError when trying to access a dictionary as if it were a list.

Can you give me an example of a KeyError?

Sure! If you try to access a key that doesn't exist, like my_dict['nonexistent_key'], it will raise a KeyError.

How can I avoid these errors?

You can use the get() method to safely access keys, which returns None if the key doesn't exist, or use try-except blocks to handle exceptions.

What about TypeError? How does that happen?

A TypeError can occur if you try to access a nested dictionary incorrectly, like using an index on a dictionary instead of a key.