在python中合并列表中的相邻数字

def merge_adjacent_numbers(lst):
    merged_lst = []
    i = 0
    while i < len(lst):
        if i == len(lst) - 1:
            merged_lst.append(lst[i])
            break
        if lst[i] == lst[i+1]:
            merged_lst.append(lst[i] + lst[i+1])
            i += 2
        else:
            merged_lst.append(lst[i])
            i += 1
    return merged_lst

numbers = [1, 2, 2, 3, 4, 4, 5, 5, 5]
merged_numbers = merge_adjacent_numbers(numbers)
print(merged_numbers)