What makes sense is creating a spell checker library, and then having other programs used that instead of implementing spell check themselves.
Granted, if your program is such that a naive, 3-5 line python implementation is sufficient, then it is probably not worth the effort to use a library. If my web-browser, word processor, e-mail client, and every other large program that has text editing implements spell check themselves, I doubt I would get comparable performance to if they all use a library designed specifically for spell check, and optimized by many other projects that used it over history.
On the subject, I would be interested to know if most large programs I mentioned actually impalement spell check themselves.
Granted, if your program is such that a naive, 3-5 line python implementation is sufficient, then it is probably not worth the effort to use a library. If my web-browser, word processor, e-mail client, and every other large program that has text editing implements spell check themselves, I doubt I would get comparable performance to if they all use a library designed specifically for spell check, and optimized by many other projects that used it over history. On the subject, I would be interested to know if most large programs I mentioned actually impalement spell check themselves.