Detailed steps to reproduce the problem?

python3 main.py      
Traceback (most recent call last):
  File "/Users/user/Workspace/tmp/pymongo-test/main.py", line 11, in <module>
    client = pymongo.MongoClient(uri)
             ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Workspace/tmp/pymongo-test/venv/lib/python3.11/site-packages/pymongo/mongo_client.py", line 748, in _init_
    res = uri_parser.parse_uri(
          ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Workspace/tmp/pymongo-test/venv/lib/python3.11/site-packages/pymongo/uri_parser.py", line 539, in parse_uri
    nodes = dns_resolver.get_hosts()
            ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Workspace/tmp/pymongo-test/venv/lib/python3.11/site-packages/pymongo/srv_resolver.py", line 121, in get_hosts
    _, nodes = self._get_srv_response_and_hosts(True)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Workspace/tmp/pymongo-test/venv/lib/python3.11/site-packages/pymongo/srv_resolver.py", line 115, in _get_srv_response_and_hosts
    raise ConfigurationError(f"Invalid SRV host: {node[0]}")
pymongo.errors.ConfigurationError: Invalid SRV host: mongodb-r.jeongmu-rs-b001.mdev-RegionOne.mg.db.***.com

The exact Python version used, with patch level:

$ python -c "import sys; print(sys.version)"

3.11.4 (main, Jun 15 2023, 07:55:38) [Clang 14.0.3 (clang-1403.0.22.14.1)]

The exact version of PyMongo used, with patch level:

$ python -c "import pymongo; print(pymongo.version); print(pymongo.has_c())"

4.4.0
True

The operating system and version (e.g. Windows 7, OSX 10.8, ...)

macOS 13.4.1(22F82)

Web framework or asynchronous network library used, if any, with version (e.g. Django 1.7, mod_wsgi 4.3.0, gevent 1.0.1, Tornado 4.0.2, ...)

Nothing