my retarded idea

# Hello World program in Python

array = [[1,2,0,4,5,6,7,0,9],
        [1,2,11,4,5,6,7,8,9],
        [1,1,3,4,5,5,41,8,9],
        [1,4,1,4,5,6,7,8,9],
        [1,2,3,4,5,11,7,8,9]]


def getCol(array, x, y, width, height):
    if x < 0 or x >= width:
        return []

    result = []

    for i in range(y-1, y+2):
        if i >= 0 and i < height:
            result.append( array[i][x])

    return result


def average(array, width, height):

    result = []

    for y in range(0, height):
        left = []
        middle = getCol(array, 0, y, width, height)
        right  = getCol(array, 1, y, width, height)

        row = []

        for x in range(1, width+1):
            totLen = len(left) + len(middle) + len(right)
            totSum = sum(left) + sum(middle) + sum(right)
            row.append((int)(totSum / totLen))

            left   = middle
            middle = right
            right  = getCol(array, x+1, y, width, height)


        result.append(row)

    return result

avr = average(array, 9, 5)

print ("array: ")
for row in array:
    print (row)


print ("\n\n\naverage: ")
for row in avr:
    print (row)