`ipaddress`: `subnet_of()` and `supernet_of()` raise confusing `TypeError` wrapping an `AttributeError` when passed an Address object

Bug report

Bug description:

When calling subnet_of() or supernet_of() on an IPv4Network or IPv6Network and passing an address object (e.g., IPv6Address) instead of a network object, the module attempts to access the network_address attribute on the address object. This raises an AttributeError, which is then caught by the broader exception handling in _is_subnet_of, resulting in a confusing TypeError that completely masks the original attribute access failure.

The method should explicitly check that the other argument is a network object (or at least raise a clear TypeError stating that a network object is required) rather than failing internally with an AttributeError that gets swallowed into a generic containment error.

Repro:

import ipaddress
ipaddress.IPv6Network('::/0').subnet_of(ipaddress.IPv6Address('::1'))

Traceback:

AttributeError: 'IPv6Address' object has no attribute 'network_address'

During handling of the above exception, another exception occurred:

TypeError: Unable to test subnet containment between ::/0 and ::1

ipaddress_repro.py

CPython versions tested on:

3.14

Operating systems tested on:

macOS

Linked PRs

• gh-154147

Bắt đầu trong module ipaddress của Python, tại _is_subnet_of, nơi xử lý subnet_of() và supernet_of(), rồi tái hiện lệnh gọi đã được báo cáo với một IPv6Address. Xác nhận rằng việc truyền một địa chỉ tạo ra một TypeError rõ ràng, nêu rằng cần có một đối tượng mạng, thay vì lỗi containment được bọc.