Python 基于字母对称性创建镜像单词

我创建了这个程序，如果一个单词是对称的，它应该显示这个单词的镜像。不幸的是，当我测试“TIMOTHY”时，它显示它不能被镜像，我无法理解为什么这不起作用

#Program for creating a mirrored
#image word#
def main():

    mirrors = ["A","H","I","M","O","T","U","V","W","X","Y"
               "b","d","i","l","m","o","p","t","v","w","x"]

    word = input("Enter in the word you'd like mirrored: ")

    for x in word:
        if x not in mirrors:
            y = True
            break

    if y == True:
        print("Sorry your word can not be mirrored")


    wordlist = ''.join(word[i] for i in range(len(word) -1, -1, -1 ))

    print(wordlist)




main()    

问题出在这里。“b”跟在“Y”后面，中间没有任何逗号。Python的一个鲜为人知的怪癖是两个相邻的字符串文本将自动连接起来。所以“Y”和“b”都不在列表中，但“Yb”在列表中

要解决此问题，请添加逗号

mirrors = ["A","H","I","M","O","T","U","V","W","X","Y",
               "b","d","i","l","m","o","p","t","v","w","x"]

此外，如果您不想在以后的

if y==True

块期间获得

UnboundLocalError

，则应在循环之前执行

y=False

mirrors = ["A","H","I","M","O","T","U","V","W","X","Y",
               "b","d","i","l","m","o","p","t","v","w","x"]