Incompatibility with Python 3.12.0b1

[freakboy3742]

Describe the bug

Python 3.12.0b1 appears to have introduced something that breaks Rubicon; from rubicon.objc import NSObject raises a TypeError.

Steps to reproduce

1. from rubicon.objc import NSObject
2. See error

Traceback (most recent call last):
  File "/Users/rkm/beeware/rubicon/objc/testbed.py", line 3, in <module>
    from rubicon.objc import NSObject, objc_method
  File "/Users/rkm/beeware/rubicon/objc/src/rubicon/objc/__init__.py", line 33, in <module>
    from . import api, collections, runtime, types
  File "/Users/rkm/beeware/rubicon/objc/src/rubicon/objc/api.py", line 1694, in <module>
    NSNumber = ObjCClass("NSNumber")
               ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/rkm/beeware/rubicon/objc/src/rubicon/objc/api.py", line 1402, in __new__
    self = super().__new__(cls, ptr, objc_class_name, (ObjCInstance,), new_attrs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/rkm/beeware/rubicon/objc/src/rubicon/objc/api.py", line 927, in __new__
    super(ObjCInstance, type(self)).__setattr__(self, "ptr", object_ptr)
TypeError:  expected 2 arguments, got 3

Expected behavior

The import should succeed.

Screenshots

No response

Environment

• Operating System: macOS Ventura 13.3.1
• Python version: 3.12.0b1
• Software versions:
  • Rubicon-Objc: 35b6fc8

Logs

No response

Additional context

There was no problem with 3.12.0a7; I haven't narrowed down the change that has caused the problem, and the Python 3.12 release notes don't have anything that is an obvious candidate (to me, anyway).

[freakboy3742]

I've narrowed the cause down to python/cpython#104270. Trying to work out a reproduction case that triggered the problem.

[freakboy3742]

Reproduction case found, and logged as python/cpython#105035.

[freakboy3742]

This has been fixed upstream, and should be included in 3.12.0b2.

[freakboy3742]

3.12.0b2 and b3 have been released, and CI builds indicate this issue has been resolved.