Note by @fastfinge

@MostlyBlindGamer Right. I admit that my problem was a bit underspecified. But if I'd handed you, a real human, a hundred lines of Python that does a bunch of string replacements and uses some regular expressions, and said I wanted to run this on my iPhone, your first reaction would probably not have been "turn it into a web app". Actually, your first reaction would have probably been "so install iSH and stop bothering me" LOL.