Thank you for catching this bug SylvainDe. This is a regression caused by issue30534. I added "()" after the function name for unifying with other error messages but missed that _PyArg_NoKeywords() often is called with argument containing "()", e.g. _PyArg_NoKeywords("bool()", kwds).

There are two ways to solve this issue:

1. Remove "()" from all calls of _PyArg_NoKeywords(), _PyArg_NoStackKeywords() and _PyArg_NoPositional() and let these functions to add "()" automatically. This will change almost all manually calls of _PyArg_NoKeywords(). And may be in some cases "()" shouldn't be added.

2. Make _PyArg_NoKeywords(), _PyArg_NoStackKeywords() and _PyArg_NoPositional() not adding "()" automatically, but always pass a name with "()" if it is needed. Argument Clinic should be changed to add "()" in arguments of these functions. This is large patch, but mostly generated.

I don't know what the way is better.