SyntaxError location for `*args` in class bases is inconsistent

tusharsadhwani

Code snippet:

class C(list[int]): ...

On Python 3.9:

>>> class C(list[*a]): ...
  File "<stdin>", line 1
    class C(list[*a]): ...
                   ^
SyntaxError: invalid syntax
>>>

On Python 3.10:

>>> class C(list[*a]): ...
  File "<stdin>", line 1
    class C(list[*a]): ...
           ^
SyntaxError: expected ':'
>>>

I'd have expected it to point directly at the * in both cases.