TypeError：交换值时，'tuple'对象不支持项目赋值

I am writing a simple sort program in python and encounter this error. I want to swap list elements but it returns an error. I am attaching the error and program in question below.

我在python中编写一个简单的排序程序并遇到此错误。我想交换列表元素，但它返回错误。我正在附上下面的错误和程序。

list[i+1] = list[i]
TypeError: 'tuple' object does not support item assignment

Code:

码：

def my_sort(list):
    for index in range(1,len(list)):
        value=list[index]
        i=index-1
        while i>=0:
            if value<list[i]:
                list[i+1] = list[i]
                list[i]=value
                i=i-1
            else:
                break
    return

    input_list=eval(input("Enter list items"))
    my_sort(input_list)
    print(input_list)

1 个解决方案

#1

Evaluating "1,2,3" results in (1, 2, 3), a tuple. As you've discovered, tuples are immutable. Convert to a list before processing.

评估“1,2,3”会产生（1,2,3）元组。正如您所发现的，元组是不可变的。在处理之前转换为列表。