Python Programming

Besides lists, Python also provides us with another sequence type called tuples.

First question: How do you pronounce tuple?

The Python Benevolent dictator for life himself has answered the question:

Tuples are like lists. The main difference is that lists are mutable (can be modified), while tuples are immutable (cannot be changed).

So unlike lists, you cannot add/remove items to/from a tuple once you have created it.

Tuples are useful for representing ordered, fixed-size grouping of elements, like 2D coordinates $(x,y)$ or 3D coordinates $(x,y,z)$.

For example, $(5,3)$ is an entity in its own right, so you cannot replace, remove, or add new members to it. If you want a new vector, e.g. $(2,3)$, you should create a brand new vector rather than modifying the $5$ in $(5,3)$ to be $2$. Sort of like how you cannot replace Edward in the group Jedward with someone else and still call them Jedward the twins. You have to form a new group with John and the new member (and they will not be twins!)