If some function is called repeatedly in a tight loop, even if it isn’t a long-running function, that’s guaranteed to impact performance. In the above example, the function add (and the ...

lru_cache basics To memoize a function in Python, we can use a utility supplied in Python’s standard library—the functools.lru_cache decorator. lru_cache isn’t hard to use.

That way, you wouldn’t need to know how to add to a list in Python as you could simply update your text file. But that is a story for another time! Also read: How to call a function in Python ...