What types of data are considered immutable in programming?

In programming, immutable types are those whose values cannot be changed after creation. In Python, such types include:

• Numbers (int, float, complex)
• Strings (str)
• Tuples (tuple)
• Boolean values (bool)
• frozenset

For example, if you have a string s = "hello", you cannot change an individual character of the string; you can only create a new string based on the existing one. This helps prevent unexpected data changes and simplifies working with multithreading.