I don't understand the meaning of -> in Python. Searching gives me pages about bitwise operators, but there is no such operator among bitwise operators. It is usually used in a function's description.
Example:
class HelloOperator(BaseOperator):
def __init__(
self,
name: str,
**kwargs) -> None:
super().__init__(**kwargs)
self.name = name
In Python, -> is not an operator.
-> sort of defines what return type a function has. It is called a type hint
Example:
def foo(x) -> int:
return x + 1
(whereas x should be an int, which you can also specify:
def foo(x: int) -> int:
return x + 1
)
You have encountered Type Hint, what is behind -> inform what is type of thing returned by function, e.g.
def greeting(name: str) -> str:
return 'Hello ' + name
means greeting function does return str.
When function or method does not have explicit return it do return None, hence -> None in your example.
It's annotation. Programmers use them to show which type will be returned by function.
You can read more about it in the official documentation:
