How do I check if the string cointains any list's element | TypeError: 'in <string>' requires string as left operand, not list | Beginner question

How do I check if the string cointains any list's element | TypeError: 'in <string>' requires string as left operand, not list | Beginner question

我正在尝试制作一个程序,使用两个单词的元音生成密码(密码是这些单词中元音的索引)。例如,对于 Python Snake,密码为 424:

Python Snake
    4    2 4
012345 01234

下面是我笨拙的代码,我得到了“TypeError: 'in ' requires string as left operand, not list”,抱歉我太蠢了,但我想不出其他不使用的方法作为左操作数的列表。

vowels = ["A", "E", "I", "O", "U"]
vowels_lower = ["a", "e", "i", "o", "u"]

word1 = input("Please input 1sr word: ")
word2 = input("Please input 2nd word: ")


def passcode(FirstWord, SecondWord):
  for i in range(0, len(word1), 1):
    if vowels in word1[i]:
      return i
    elif vowels_lower in word1[i]:
      return i
    print(i)

  for i in range(0, len(word2), 1):
    if vowels in word2[i]:
      return i
    elif vowels_lower in word2[i]:
      return i
    print(i)
  
     
passcode(word1, word2)

一些建议会有所帮助。

谢谢。

代码:

vowels = ["A", "E", "I", "O", "U"]


word1 = input("Please input 1sr word: ")
word2 = input("Please input 2nd word: ")


def passcode(FirstWord, SecondWord):
    ans1=''
    ans2=''
    for idx, chr in enumerate(FirstWord):
        if chr.upper() in vowels:
            ans1+=str(idx)
    for idx, chr in enumerate(SecondWord):
        if chr.upper() in vowels:
            ans2+=str(idx)
    ans = ans1+ans2
    return ans
            
  
     
passwd=passcode(word1, word2)
print(passwd)

输入:

Please input 1sr word: python
Please input 2nd word: snake

输出:

424