Suddenly seeing this weird error related to dns.rdtypes.ANY.SOA.SOA

[swasnaiktik]

Hey everyone!
I am working on a completely event based backend. The server was working, but suddenly I started to see this error on startup. I wasnt able to find anything relevant out there. Some help would be really appreciated.
(This is my first post, sorry if I missed any etiquette)

app_1    | Traceback (most recent call last):
app_1    |   File "/root/backend/server.py", line 2, in <module>
app_1    |     from flask_socketio import SocketIO, emit
app_1    |   File "/usr/local/lib/python3.11/site-packages/flask_socketio/__init__.py", line 9, in <module>
app_1    |     from socketio import socketio_manage  # noqa: F401
app_1    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app_1    |   File "/usr/local/lib/python3.11/site-packages/socketio/__init__.py", line 9, in <module>
app_1    |     from .zmq_manager import ZmqManager
app_1    |   File "/usr/local/lib/python3.11/site-packages/socketio/zmq_manager.py", line 5, in <module>
app_1    |     import eventlet.green.zmq as zmq
app_1    |   File "/usr/local/lib/python3.11/site-packages/eventlet/__init__.py", line 17, in <module>
app_1    |     from eventlet import convenience
app_1    |   File "/usr/local/lib/python3.11/site-packages/eventlet/convenience.py", line 7, in <module>
app_1    |     from eventlet.green import socket
app_1    |   File "/usr/local/lib/python3.11/site-packages/eventlet/green/socket.py", line 21, in <module>
app_1    |     from eventlet.support import greendns
app_1    |   File "/usr/local/lib/python3.11/site-packages/eventlet/support/greendns.py", line 66, in <module>
app_1    |     setattr(dns, pkg, import_patched('dns.' + pkg))
app_1    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app_1    |   File "/usr/local/lib/python3.11/site-packages/eventlet/support/greendns.py", line 61, in import_patched
app_1    |     return patcher.import_patched(module_name, **modules)
app_1    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app_1    |   File "/usr/local/lib/python3.11/site-packages/eventlet/patcher.py", line 132, in import_patched
app_1    |     return inject(
app_1    |            ^^^^^^^
app_1    |   File "/usr/local/lib/python3.11/site-packages/eventlet/patcher.py", line 109, in inject
app_1    |     module = __import__(module_name, {}, {}, module_name.split('.')[:-1])
app_1    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
app_1    |   File "/usr/local/lib/python3.11/site-packages/dns/zone.py", line 86, in <module>
app_1    |     class Zone(dns.transaction.TransactionManager):
app_1    |   File "/usr/local/lib/python3.11/site-packages/dns/zone.py", line 757, in Zone
app_1    |     ) -> dns.rdtypes.ANY.SOA.SOA:
app_1    |          ^^^^^^^^^^^^^^^
app_1    | AttributeError: module 'dns.rdtypes' has no attribute 'ANY'

[miguelgrinberg]

DNS errors are typically issues related to eventlet's networking implementation. Have you done an eventlet upgrade, or maybe a Python upgrade? That could have inadvertently introduced an incompatibility between Python and eventlet.

Edit: I actually found a report of this issue with a workaround in the eventlet bug tracker: eventlet/eventlet#781

[swasnaiktik]

Thank you for the help!