title: I can't figure out how to set the file extension for my programming language (built in python)
body: <p>So I'm building a programming language in Python, and I <strong>can't</strong> figure out how to set what the file extension for my language will be. Like, I can't figure out how to specify, within the code, what the file ending (s) will be for this language. The repo is <a href="https://github.com/Zachinquarantine/learn2020" rel="nofollow noreferrer">here</a>.</p>