Yep. Even when you're doing something as simple as iterating over some data structure, you have to remember not to mutate it. Rust enforces that, but Python jus

Yep. Even when you're doing something as simple as iterating over some data structure, you have to remember not to mutate it. Rust enforces that, but Python just either corrupts the data structure / iterator, or if you're lucky it'll throw an exception.