A data structure is a particular way of organizing data in a computer so that it can be used efficiently. Python comes with a robust set of inbuilt data structures. Some of the most commonly used ones are:
* [Lists](https://docs.python.org/3/library/stdtypes.html#lists) — A sequence type where comma-separated values are ordered between square brackets and changeable.
* [Tuples](https://docs.python.org/3/library/stdtypes.html#tuples) — A sequence type where values are ordered between parentheses and unchangeable.
* [Dictionaries](https://docs.python.org/3/tutorial/datastructures.html#dictionaries) — An unordered collection that is changeable and indexed where values are held within curly braces in *key: value* pairs.