What is the difference between curly brace and square bracket in Python?

Question

what is the difference between curly brace and square bracket in python?

A ={1,2}
B =[1,2]

when I print A and B o

Answer 1

They create different types.

>>> type({})

>>> type([])

>>> type({1, 2})

>>> type({1: 2})

>>> type([1, 2])