What are mutable and immutable dictionaries in Python?

Can you explain the difference between mutable and immutable dictionaries in Python?

Sure! In Python, a mutable dictionary can be changed after it's created, while an immutable dictionary cannot be modified.

Can you give me examples of both types?

Absolutely! A mutable dictionary is created using curly braces, like this: {'key': 'value'}. An immutable dictionary can be created using the types.MappingProxyType.

What happens if I try to change an immutable dictionary?

If you try to change an immutable dictionary, Python will raise a TypeError, indicating that the object does not support item assignment.

Are there any use cases for immutable dictionaries?

Yes, immutable dictionaries are useful in situations where you want to ensure that the data remains constant, such as in multi-threaded applications.