understanding string formatting in python 3 code example

Example 1: string formatting in python

# Newer f-string format
name = "Foo"
age = 12
print(f"Hello, My name is {name} and I'm {age} years old.")
# output :
# Hello, my name is Foo and I'm 12 years old.

Example 2: new python string formatting

>>> f'Hello, {name}!'
'Hello, Bob!'