From a6c748390b5be5f50cea65cd9794a3a0bf170193 Mon Sep 17 00:00:00 2001
From: Alexander Verbitsky <habibutsu@gmail.com>
Date: Mon, 28 Jun 2021 09:29:53 +0300
Subject: [PATCH] S3Driver: performance improvement by caching actively used
 buckets

---
 src/cloudstorage/drivers/amazon.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/cloudstorage/drivers/amazon.py b/src/cloudstorage/drivers/amazon.py
index b21f6f1..7ebc6fe 100644
--- a/src/cloudstorage/drivers/amazon.py
+++ b/src/cloudstorage/drivers/amazon.py
@@ -2,6 +2,7 @@
 import logging
 from typing import Any, Dict, Iterable, List, TYPE_CHECKING  # noqa: F401
 from urllib.parse import quote, urljoin
+from functools import lru_cache
 
 import boto3
 from botocore.exceptions import ClientError, ParamValidationError, WaiterError
@@ -108,6 +109,7 @@ def _normalize_parameters(
 
         return normalized
 
+    @lru_cache
     def _get_bucket(self, bucket_name: str, validate: bool = True):
         """Get a S3 bucket.