how to do f string in python code example

Example 1: python fstring

#python3.6 is required
age = 12
name = "Simon"
print(f"Hi! My name is {name} and I am {age} years old")

Example 2: not using f string in python

>>> "Hello, {1}. You are {0}.".format(age, name)
'Hello, Eric. You are 74.'