python-pytn3270 fails to build with Python 3.13.0a1.

____________________ ERROR collecting tests/test_telnet.py _____________________
ImportError while importing test module '/builddir/build/BUILD/pytn3270-0.15.1/tests/test_telnet.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib64/python3.13/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
tests/test_telnet.py:9: in <module>
    from tn3270.telnet import Telnet, TN3270EFunction, TN3270EMessageHeader, TN3270EDataType, TN3270EResponseFlag, encode_rfc1646_terminal_type, encode_rfc2355_device_type, decode_rfc2355_device_type
tn3270/__init__.py:3: in <module>
    from .telnet import (
tn3270/telnet.py:13: in <module>
    from telnetlib import IAC, WILL, WONT, DO, DONT, SB, SE, BINARY, EOR, TTYPE, TN3270E
E   ModuleNotFoundError: No module named 'telnetlib'
=========================== short test summary info ============================
ERROR tests/test_attributes.py
ERROR tests/test_datastream.py
ERROR tests/test_emulator.py
ERROR tests/test_telnet.py
!!!!!!!!!!!!!!!!!!! Interrupted: 4 errors during collection !!!!!!!!!!!!!!!!!!!!
============================== 4 errors in 0.19s ===============================


According to https://docs.python.org/3.13/whatsnew/3.13.html:
PEP 594: Remove the telnetlib module, deprecated in Python 3.11: use the projects telnetlib3 or Exscript instead.
(Contributed by Victor Stinner in gh-104773.)

https://docs.python.org/3.13/whatsnew/3.13.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.13/fedora-rawhide-x86_64/06564744-python-pytn3270/

For all our attempts to build python-pytn3270 with Python 3.13, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.13/package/python-pytn3270/

Testing and mass rebuild of packages is happening in copr.
You can follow these instructions to test locally in mock if your package builds with Python 3.13:
https://copr.fedorainfracloud.org/coprs/g/python/python3.13/

Let us know here if you have any questions.

Python 3.13 is planned to be included in Fedora 41.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.13.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires),
so if this package is required a lot, it's important for us to get it fixed soon.

We'd appreciate help from the people who know this package best,
but if you don't want to work on this now, let us know so we can try to work around it on our side.