我已经从vulnhub下载了几台VM，目的是提高我的渗透测试技巧。在所有下载页面中，虚拟机都应生成自己的IP地址。但是，运行以下命令，def remove_adjacent_duplicates(answer):
new_answer = "" # output string
ch_last = "" # current character of last iteration
start, end = 0, 0 # start and end indices of adjacent characters sequence
for index, ch in enumerate(answer):
if index: # for index 1 and onwards
if ch == ch_last:
end = index
else: # if new character encountered after repetition of any character
if start == end: # if there is a repetition
new_answer = new_answer + ch_last
start, end = index, index
else: # index == 0 (only 1st time)
start, end = index, index
ch_last = ch # save the current character to use it in next iteration
if start == end: # if the last encountered character is not of repeating nature
new_answer = new_answer + ch_last
return new_answer
# START
if __name__ == "__main__":
# INPUT 1
answer = input("Enter a string: ") # abbabd
print(remove_adjacent_duplicates(answer)) # aabd
# INPUT 2
answer = input("Enter a string: ") # abcddddeefffghii
print(remove_adjacent_duplicates(answer)) # abcgh
# INPUT 3
answer = input("Enter a string: ") # abcddddeefffghi
print(remove_adjacent_duplicates(answer)) # abcghi
# INPUT 4
answer = input("Enter a string: ") # aa**mmmxxnnnnRaaI++SH((IKES))H
print(remove_adjacent_duplicates(answer)) # RISHIKESH
产生“未设置任何值！”。
我尝试将其设置为网络中的某个内容（据我了解，这应该是自动完成的操作），但这不起作用。对新地址执行Ping操作会导致100％的数据包丢失。
我检查的值是否错误？有什么我想念的吗？
预先感谢