let int = rustpython_vm::Interpreter::with_init(Default::default(), |vm| {
    vm.add_native_modules(rustpython_stdlib::get_module_inits());
    // ...
});

int.enter(|vm| {
    vm.insert_sys_path(vm.new_pyobj("./pythonfiles"))
        .expect("add path");

    let m = match vm.import("pyfile", None, 0) {
        Ok(m) => m,
        Err(e) => {
            vm.print_exception(e);
            panic!("Failed at importing python file");
        }
    };
});