列表删除重复的元素

萌新刚入python
写了一个删除重复元素的代码，但报错，好久也没有解决，求大佬帮助
s=["hello","my","dear","son","lover","world","hello","my"]

i=0
p=len(s)
for i in range(p-1):
    t=s
    j=i+1
    for j in range(p):
        if(t==s):
            del s[j]
            p=len(s)
错误如下

用set就可以去重复。

s=["hello","my","dear","son","lover","world","hello","my"]
li = []
for i in s:
    if i not in li:
        li.append(i)
或
res = set(s)

1. s=["hello","my","dear","son","lover","world","hello","my"]
   
2. s[:] = list(set(s))

复制代码

正在对这个列表进行操作的时候是不能对其进行删除或者添加操作