Walrus Operator is the one of the new features in python 3.8 ,it is a new method, using Walrus Operator we can assign values to variable as a part of an expression using the notation NAME := expression for example :
x_year= 2019
if (y_year:= x_year) < 2020:
print(f"The value of y_year is {y_year} and is happend before 2020.")
here the value of x_year is assigned y_year if the condition satified(< 2020)
