What data types are considered data structures?

In Python, data structures include:

• Built-in data structures:

  • List: An ordered, mutable collection of elements.
  • Tuple: An ordered, immutable collection of elements.
  • Set: An unordered collection of unique elements, mutable.
  • Dictionary: An unordered collection of key-value pairs, mutable.

• Data structures from the standard library (collections):

  • collections.deque: Double-ended queue.
  • collections.Counter: A subclass of dictionary for counting hashable objects.
  • collections.defaultdict: A subclass of dictionary that calls a factory function to provide missing values.

• Data structures from external libraries (examples):

  • numpy.ndarray: Multidimensional array (NumPy library).
  • pandas.DataFrame: Two-dimensional labeled data structure (pandas library).

Data types such as integers (int), floating-point numbers (float), strings (str), and boolean values (bool) are not data structures themselves, as they represent individual values rather than collections.