import random
numbers =[random.randint(1,30) for x in range(1,21)]
alist = sorted(numbers)
print(alist)

def linear_search(alist, value):

    for position, item in enumerate(alist):

        if item == value:
            print(item, 'is in position', str(position))
            break

        if item > value:
            print('item is not found in alist')
            break


linear_search(alist, 9)