영어 안한지 몇년은 됐는데


 이제와서 하려니 줄라 어렵네요.


 파이썬 index 함수가 


(method) index: (__sub: str, __start: SupportsIndex | None = ..., __end: SupportsIndex | None = ...) -> int

S.index(sub[, start[, end]]) -> int

Return the lowest index in S where substring sub is found,
such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.

Raises ValueError when the substring is not found.



이렇게 표기되는데 이것도 못읽겠네요