# Python3 code to demonstrate
# yield keyword
 
# generator to print even numbers
def print_even(test_list) :
    for i in test_list:
        if i % 2 == 0:
            yield i
 
# initializing list
test_list = [1, 4, 5, 6, 7]
 
# printing initial list
print ("The original list is : " +  str(test_list))
 
# printing even numbers
print ("The even numbers in list are : ", end = " ")
for j in print_even(test_list):
    print (j, end = " ")