ruff: Fix UP033 Use @functools.cache.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

zerver/lib/export.py

@@ -14,7 +14,7 @@ import subprocess
 import tempfile
 from contextlib import suppress
 from datetime import datetime
-from functools import lru_cache
+from functools import cache
 from typing import Any, Callable, Dict, Iterable, List, Mapping, Optional, Set, Tuple, TypedDict
 
 import orjson
@@ -2232,7 +2232,7 @@ def chunkify(lst: List[int], chunk_size: int) -> List[List[int]]:
 def export_messages_single_user(
     user_profile: UserProfile, *, output_dir: Path, reaction_message_ids: Set[int]
 ) -> None:
-    @lru_cache(maxsize=None)
+    @cache
     def get_recipient(recipient_id: int) -> str:
         recipient = Recipient.objects.get(id=recipient_id)
 

zerver/lib/push_notifications.py

@@ -7,7 +7,7 @@ import logging
 import re
 from dataclasses import dataclass
 from email.headerregistry import Address
-from functools import lru_cache
+from functools import cache
 from typing import (
     TYPE_CHECKING,
     Any,
@@ -162,7 +162,7 @@ def has_apns_credentials() -> bool:
     return settings.APNS_TOKEN_KEY_FILE is not None or settings.APNS_CERT_FILE is not None
 
 
-@lru_cache(maxsize=None)
+@cache
 def get_apns_context() -> Optional[APNsContext]:
     # We lazily do this import as part of optimizing Zulip's base
     # import time.

zerver/lib/timezone.py

@@ -1,10 +1,10 @@
-from functools import lru_cache
+from functools import cache
 from typing import Dict
 
 from scripts.lib.zulip_tools import get_tzdata_zi
 
 
-@lru_cache(maxsize=None)
+@cache
 def get_canonical_timezone_map() -> Dict[str, str]:
     canonical = {}
     with get_tzdata_zi() as f:

zerver/tornado/event_queue.py

@@ -9,7 +9,7 @@ import traceback
 import uuid
 from collections import deque
 from contextlib import suppress
-from functools import lru_cache
+from functools import cache
 from typing import (
     AbstractSet,
     Any,
@@ -1110,7 +1110,7 @@ def process_message_event(
     recipient_type_name: str = wide_dict["type"]
     sending_client: str = wide_dict["client"]
 
-    @lru_cache(maxsize=None)
+    @cache
     def get_client_payload(
         apply_markdown: bool, client_gravatar: bool, can_access_sender: bool
     ) -> Dict[str, Any]: