From c6cc0a0e367cc4861818da9d3e34cb449c25f469 Mon Sep 17 00:00:00 2001
From: Iris <iris.ho@mongodb.com>
Date: Tue, 1 Sep 2026 10:24:25 -0700
Subject: [PATCH 1/2] move _have_dnspython

---
 pymongo/asynchronous/srv_resolver.py  |  9 ---------
 pymongo/synchronous/srv_resolver.py   |  9 ---------
 pymongo/uri_parser_shared.py          | 11 ++++++++++-
 test/asynchronous/test_srv_polling.py |  2 +-
 test/test_srv_polling.py              |  2 +-
 5 files changed, 12 insertions(+), 21 deletions(-)

diff --git a/pymongo/asynchronous/srv_resolver.py b/pymongo/asynchronous/srv_resolver.py
index 2d99ef16c8..43135b8aaa 100644
--- a/pymongo/asynchronous/srv_resolver.py
+++ b/pymongo/asynchronous/srv_resolver.py
@@ -29,15 +29,6 @@
 _IS_SYNC = False
 
 
-def _have_dnspython() -> bool:
-    try:
-        import dns  # noqa: F401
-
-        return True
-    except ImportError:
-        return False
-
-
 # dnspython can return bytes or str from various parts
 # of its API depending on version. We always want str.
 def maybe_decode(text: Union[str, bytes]) -> str:
diff --git a/pymongo/synchronous/srv_resolver.py b/pymongo/synchronous/srv_resolver.py
index de1a0fc9e6..c44c74cbeb 100644
--- a/pymongo/synchronous/srv_resolver.py
+++ b/pymongo/synchronous/srv_resolver.py
@@ -29,15 +29,6 @@
 _IS_SYNC = True
 
 
-def _have_dnspython() -> bool:
-    try:
-        import dns  # noqa: F401
-
-        return True
-    except ImportError:
-        return False
-
-
 # dnspython can return bytes or str from various parts
 # of its API depending on version. We always want str.
 def maybe_decode(text: Union[str, bytes]) -> str:
diff --git a/pymongo/uri_parser_shared.py b/pymongo/uri_parser_shared.py
index 62d862bcfa..7f9dd49e7c 100644
--- a/pymongo/uri_parser_shared.py
+++ b/pymongo/uri_parser_shared.py
@@ -33,7 +33,6 @@
 )
 from urllib.parse import unquote_plus
 
-from pymongo.asynchronous.srv_resolver import _have_dnspython
 from pymongo.client_options import _parse_ssl_options
 from pymongo.common import (
     INTERNAL_URI_OPTION_NAME_MAP,
@@ -47,6 +46,16 @@
 if TYPE_CHECKING:
     from pymongo.pyopenssl_context import SSLContext
 
+
+def _have_dnspython() -> bool:
+    try:
+        import dns  # noqa: F401
+
+        return True
+    except ImportError:
+        return False
+
+
 SCHEME = "mongodb://"
 SCHEME_LEN = len(SCHEME)
 SRV_SCHEME = "mongodb+srv://"
diff --git a/test/asynchronous/test_srv_polling.py b/test/asynchronous/test_srv_polling.py
index 74e6ce969e..b8b9129925 100644
--- a/test/asynchronous/test_srv_polling.py
+++ b/test/asynchronous/test_srv_polling.py
@@ -27,8 +27,8 @@
 
 import pymongo
 from pymongo import common
-from pymongo.asynchronous.srv_resolver import _have_dnspython
 from pymongo.errors import ConfigurationError
+from pymongo.uri_parser_shared import _have_dnspython
 from test.asynchronous import AsyncPyMongoTestCase, client_knobs, unittest
 from test.asynchronous.utils import async_wait_until
 
diff --git a/test/test_srv_polling.py b/test/test_srv_polling.py
index 4927b08f3d..e01ae1da7f 100644
--- a/test/test_srv_polling.py
+++ b/test/test_srv_polling.py
@@ -28,7 +28,7 @@
 import pymongo
 from pymongo import common
 from pymongo.errors import ConfigurationError
-from pymongo.synchronous.srv_resolver import _have_dnspython
+from pymongo.uri_parser_shared import _have_dnspython
 from test import PyMongoTestCase, client_knobs, unittest
 from test.utils import wait_until
 

From 0380557d6810bbc2226081989d49df783ed31748 Mon Sep 17 00:00:00 2001
From: Iris <iris.ho@mongodb.com>
Date: Wed, 2 Sep 2026 11:15:32 -0700
Subject: [PATCH 2/2] move function to further down the file

---
 pymongo/uri_parser_shared.py | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/pymongo/uri_parser_shared.py b/pymongo/uri_parser_shared.py
index 7f9dd49e7c..6f51bcd92e 100644
--- a/pymongo/uri_parser_shared.py
+++ b/pymongo/uri_parser_shared.py
@@ -47,15 +47,6 @@
     from pymongo.pyopenssl_context import SSLContext
 
 
-def _have_dnspython() -> bool:
-    try:
-        import dns  # noqa: F401
-
-        return True
-    except ImportError:
-        return False
-
-
 SCHEME = "mongodb://"
 SCHEME_LEN = len(SCHEME)
 SRV_SCHEME = "mongodb+srv://"
@@ -114,6 +105,15 @@ def _have_dnspython() -> bool:
 )
 
 
+def _have_dnspython() -> bool:
+    try:
+        import dns  # noqa: F401
+
+        return True
+    except ImportError:
+        return False
+
+
 def _unquoted_percent(s: str) -> bool:
     """Check for unescaped percent signs.