How to write differently to remove this type hint in Python 2.7?

[Shaozhong SHI]

Is there another way to do this?

def greet(name: str) -> str:
    return "Hello, " + name
greet

File "<ipython-input-28-bee2cddf1f0d>", line 1 def greet(name: str) -> str:
^ SyntaxError: invalid syntax