Is raise really a keyword?

Take these examples:

>>>raise(BaseException())
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
BaseException

>>>raise BaseException()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
BaseException

If raise is a keyword, why is it invoked like a function?

>Solution :

Putting parentheses around something just makes it a parenthesized value; it does not magically make it a function call.

1 is the same as (1), therefore return 1 is the same as return (1).

But it’s not a function call.