=================================== FAILURES ===================================
______________________________ test_iss1615_1673 _______________________________
[gw2] linux -- Python 3.12.13 /opt/hostedtoolcache/Python/3.12.13/x64/bin/python

    @pytest.mark.enable_socket
    def test_iss1615_1673():
        """
        Test cases where /N is not indicating chains of objects
        test also where /N,... are not part of chains
        """
        # #1615
        url = "https://github.com/py-pdf/pypdf/files/10671366/graph_letter.pdf"
        name = "graph_letter.pdf"
>       reader = PdfReader(BytesIO(get_data_from_url(url, name=name)))

tests/test_generic.py:998: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
tests/__init__.py:73: in get_data_from_url
    cache_path.write_bytes(_get_data_from_url(url))
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

url = 'https://github.com/py-pdf/pypdf/files/10671366/graph_letter.pdf'

    def _get_data_from_url(url: str) -> bytes:
        ssl._create_default_https_context = ssl._create_unverified_context
        attempts = 0
        while attempts < 3:
            try:
                with urllib.request.urlopen(  # noqa: S310
                        url
                ) as response:
                    return response.read()
            except HTTPError as e:
                if attempts < 3:
                    attempts += 1
                else:
                    raise e
>       raise ValueError(f"Unknown error handling {url}")
E       ValueError: Unknown error handling https://github.com/py-pdf/pypdf/files/10671366/graph_letter.pdf

tests/__init__.py:37: ValueError