ref(boto3): remove lazy-loading approach; replace with static map

pabloDeputter · Sep 18, 2026 · Sep 21, 2026 · Sep 21, 2026 · Sep 30, 2026 · Sep 30, 2026
commit c2f4f6ba4c2f4ff1a381f38f34bc5c5e86f21986
@@ -1,33 +1,21 @@
-from functools import lru_cache
-from importlib import import_module
 from typing import TYPE_CHECKING
 
-from sentry_sdk.integrations.boto3._services.base import _ServiceExtension
-from sentry_sdk.utils import capture_internal_exceptions
-
 if TYPE_CHECKING:
-    from typing import Dict, Optional, Tuple
+    from typing import Dict, Optional
+
+    from sentry_sdk.integrations.boto3._services.base import _ServiceExtension
 
 
-# service modules are imported lazily.
-# e.g. `s3` -> (`sentry_sdk.integrations.boto3._services.s3`, `_S3Extension)
-_SERVICE_EXTENSIONS: "Dict[str, Tuple[str, str]]" = {}
+# when py 3.15 drops, we might want to take a look at using
+# a lazy-loading approach using the new `lazy` keyword.
+# e.g. {"s3": _S3Extension}
+_SERVICE_EXTENSIONS: "Dict[str, _ServiceExtension]" = {}
 
 
-@lru_cache(maxsize=None)
 def _resolve_service(
-    service: "str",
+    service_name: "str",
 ) -> "Optional[_ServiceExtension]":
->
-    if target is None:
-        return None
-
-    with capture_internal_exceptions():
-        module_name, class_name = target
-        extension_class = getattr(import_module(module_name), class_name)
-        candidate = extension_class()
-        if isinstance(candidate, _ServiceExtension):
-            return candidate
-
+    if service_name in _SERVICE_EXTENSIONS:
+        return _SERVICE_EXTENSIONS[service_name]
     # preserve generic instrumentation when lookup fails.
     return None