Which Bracket to Use Define Tuple?

A tuple is a collection which is ordered and unchangeable. Tuples are written with round brackets.

How we can define tuple?

A Tuple is a collection of Python objects separated by commas. In someways a tuple is similar to a list in terms of indexing, nested objects and repetition but a tuple is immutable unlike lists which are mutable.

What does {} brackets mean in Python?

() parentheses are used for order of operations, or order of evaluation, and are referred to as tuples. [] brackets are used for lists. List contents can be changed, unlike tuple content. {} are used to define a dictionary in a "list" called a literal.