这是我的代码，似乎给了我一个我不知道如何解决的奇怪KeyError。如果您有任何帮助，那将非常有帮助。谢谢
from __future__ import new_statement, variable_types
import sys
const string = new str("hello world");
sys.log(string);
def Person(name: str) -> Person:
self.name = name
Person.class.get_name = def () -> str:
return self.name
Person.class.set_name = def (name: str) -> str:
return (self.name = name)
var person = new Person("Ben")
var name = person.set_name("Pegasus")
sys.log(name)
