Changed code to support older Python versions

venv/lib/python3.11/site-packages/pydantic_settings/sources/providers/aws.py

@@ -0,0 +1,79 @@
+from __future__ import annotations as _annotations  # important for BaseSettings import to work
+
+import json
+from collections.abc import Mapping
+from typing import TYPE_CHECKING
+
+from ..utils import parse_env_vars
+from .env import EnvSettingsSource
+
+if TYPE_CHECKING:
+    from pydantic_settings.main import BaseSettings
+
+
+boto3_client = None
+SecretsManagerClient = None
+
+
+def import_aws_secrets_manager() -> None:
+    global boto3_client
+    global SecretsManagerClient
+
+    try:
+        from boto3 import client as boto3_client
+        from mypy_boto3_secretsmanager.client import SecretsManagerClient
+    except ImportError as e:  # pragma: no cover
+        raise ImportError(
+            'AWS Secrets Manager dependencies are not installed, run `pip install pydantic-settings[aws-secrets-manager]`'
+        ) from e
+
+
+class AWSSecretsManagerSettingsSource(EnvSettingsSource):
+    _secret_id: str
+    _secretsmanager_client: SecretsManagerClient  # type: ignore
+
+    def __init__(
+        self,
+        settings_cls: type[BaseSettings],
+        secret_id: str,
+        region_name: str | None = None,
+        endpoint_url: str | None = None,
+        case_sensitive: bool | None = True,
+        env_prefix: str | None = None,
+        env_nested_delimiter: str | None = '--',
+        env_parse_none_str: str | None = None,
+        env_parse_enums: bool | None = None,
+    ) -> None:
+        import_aws_secrets_manager()
+        self._secretsmanager_client = boto3_client('secretsmanager', region_name=region_name, endpoint_url=endpoint_url)  # type: ignore
+        self._secret_id = secret_id
+        super().__init__(
+            settings_cls,
+            case_sensitive=case_sensitive,
+            env_prefix=env_prefix,
+            env_nested_delimiter=env_nested_delimiter,
+            env_ignore_empty=False,
+            env_parse_none_str=env_parse_none_str,
+            env_parse_enums=env_parse_enums,
+        )
+
+    def _load_env_vars(self) -> Mapping[str, str | None]:
+        response = self._secretsmanager_client.get_secret_value(SecretId=self._secret_id)  # type: ignore
+
+        return parse_env_vars(
+            json.loads(response['SecretString']),
+            self.case_sensitive,
+            self.env_ignore_empty,
+            self.env_parse_none_str,
+        )
+
+    def __repr__(self) -> str:
+        return (
+            f'{self.__class__.__name__}(secret_id={self._secret_id!r}, '
+            f'env_nested_delimiter={self.env_nested_delimiter!r})'
+        )
+
+
+__all__ = [
+    'AWSSecretsManagerSettingsSource',
+]