python之向后或向前读相同的单词

谁能帮我告诉我缺少的东西是什么

class Palindrome: 
 
  @staticmethod 
  def is_palindrome(word): 
    copy_ = word[-1:] 
    if word == copy_: 
       return True 
     else: 
       return False 
 
 
  print(Palindrome.is_palindrome("deleveled")) 

请您参考如下方法:

改变:

copy_ = word[-1:] 

收件人:

copy_ = word[::-1]