Fix import of _PYMONGO_EXECUTOR

Author: NoahStapp

pymongo/_asyncio_executor.py

@@ -0,0 +1,22 @@
+# Copyright 2024-present MongoDB, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""A separate ThreadPoolExecutor instance used internally to avoid competing for resources with the default asyncio ThreadPoolExecutor
+that user code will use."""
+
+from __future__ import annotations
+
+from concurrent.futures import ThreadPoolExecutor
+
+_PYMONGO_EXECUTOR = ThreadPoolExecutor(thread_name_prefix="PYMONGO_EXECUTOR-")

pymongo/asynchronous/pool.py

@@ -38,7 +38,8 @@
 )
 
 from bson import DEFAULT_CODEC_OPTIONS
-from pymongo import _PYMONGO_EXECUTOR, _csot, helpers_shared
+from pymongo import _csot, helpers_shared
+from pymongo._asyncio_executor import _PYMONGO_EXECUTOR
 from pymongo.asynchronous.client_session import _validate_session_write_concern
 from pymongo.asynchronous.helpers import _handle_reauth
 from pymongo.asynchronous.network import command, receive_message

pymongo/pyopenssl_context.py

@@ -31,7 +31,7 @@
 from OpenSSL import SSL as _SSL
 from OpenSSL import crypto as _crypto
 
-from pymongo import _PYMONGO_EXECUTOR
+from pymongo._asyncio_executor import _PYMONGO_EXECUTOR
 from pymongo.errors import ConfigurationError as _ConfigurationError
 from pymongo.errors import _CertificateError  # type:ignore[attr-defined]
 from pymongo.ocsp_cache import _OCSPCache

pymongo/synchronous/pool.py

@@ -38,7 +38,8 @@
 )
 
 from bson import DEFAULT_CODEC_OPTIONS
-from pymongo import _PYMONGO_EXECUTOR, _csot, helpers_shared
+from pymongo import _csot, helpers_shared
+from pymongo._asyncio_executor import _PYMONGO_EXECUTOR
 from pymongo.common import (
     MAX_BSON_SIZE,
     MAX_MESSAGE_SIZE,