Aubameyang has just one year left to run on his Arsenal contract, and his future at the club is the subject of intense speculation.
"He is already one of the legends [at Arsenal] because of the amount of goals he's scored in so few games," Lacazette told beIN Sports.
"But to be honest, we stopped talking about this [his future] because at the beginning it can be funny.
"But long term you can start to be annoying because you want something that is not maybe the way we'd like and I don't want to be the guy being a bit annoying [by keep asking the same questions].
"So we don't really speak about his future. I'm just going to wait like everyone else. And I just hope he's going tell me before the press."