how to put variables in string in print python code example

Example 1: how to use variables in string in python

#Use f-string
#Example:

x = 2
y = f'This is a string using variable x: {x}'
print(y)

#Output: 
#This is a string using variable x: 2

Example 2: python print variables and string

# This prints out "John is 23 years old."
name = "John"
age = 23
print("%s is %d years old." % (name, age))
# note: the letter is based on the datatype. %s = string, %d = decimal