From bcc8a863f3c276fc884557309cfb737755494e19 Mon Sep 17 00:00:00 2001
From: kalgoritmi <kalgo@protonmail.ch>
Date: Fri, 22 Sep 2023 12:53:12 +0300
Subject: [PATCH 1/4] Add support for cached_property decorator for python <
 3.8 through backports

---
 detectron2/utils/events.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/detectron2/utils/events.py b/detectron2/utils/events.py
index 7d582a9a16..d1c15dfaf0 100644
--- a/detectron2/utils/events.py
+++ b/detectron2/utils/events.py
@@ -6,11 +6,15 @@
 import time
 from collections import defaultdict
 from contextlib import contextmanager
-from functools import cached_property
 from typing import Optional
 import torch
 from fvcore.common.history_buffer import HistoryBuffer
 
+try:
+    from functools import cached_property
+except:
+    from backports.cached_property import cached_property
+
 from detectron2.utils.file_io import PathManager
 
 __all__ = [

From 6e6200634cbc374cb04417ddb555c0674630dc83 Mon Sep 17 00:00:00 2001
From: kalgoritmi <kalgo@protonmail.ch>
Date: Fri, 22 Sep 2023 13:29:37 +0300
Subject: [PATCH 2/4] Add backports package required for supporting detectron2
 on python < 3.8

---
 setup.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/setup.py b/setup.py
index b51307a625..c118b06795 100644
--- a/setup.py
+++ b/setup.py
@@ -190,6 +190,7 @@ def get_model_zoo_configs() -> List[str]:
         "hydra-core>=1.1",
         "black",
         "packaging",
+        "backports.cached-property==1.0.2; python_version < '3.8'",
         # NOTE: When adding new dependencies, if it is required at import time (in addition
         # to runtime), it probably needs to appear in docs/requirements.txt, or as a mock
         # in docs/conf.py

From 25cfeb2adda8f854fd04ffaa886414c0a6eee068 Mon Sep 17 00:00:00 2001
From: kalgoritmi <kalgo@protonmail.ch>
Date: Wed, 8 Jan 2025 22:31:53 +0200
Subject: [PATCH 3/4] Refactor to explicit check of the version

---
 detectron2/utils/events.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/detectron2/utils/events.py b/detectron2/utils/events.py
index 3df3c33852..8a470c8ab2 100644
--- a/detectron2/utils/events.py
+++ b/detectron2/utils/events.py
@@ -3,6 +3,7 @@
 import json
 import logging
 import os
+import sys
 import time
 from collections import defaultdict
 from contextlib import contextmanager
@@ -10,9 +11,9 @@
 import torch
 from fvcore.common.history_buffer import HistoryBuffer
 
-try:
+if sys.version_info >= (3, 8):
     from functools import cached_property
-except:
+else:
     from backports.cached_property import cached_property
 
 from detectron2.utils.file_io import PathManager

From bcc172532aa760985a34f772742ee440d571b3ca Mon Sep 17 00:00:00 2001
From: kalgoritmi <kalgo@protonmail.ch>
Date: Wed, 8 Jan 2025 23:44:16 +0200
Subject: [PATCH 4/4] Add backport version of cached property for python below
 3.8

---
 docs/requirements.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docs/requirements.txt b/docs/requirements.txt
index 720a1b1193..e6d5da0f85 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -21,3 +21,4 @@ omegaconf>=2.1.0.dev24
 hydra-core>=1.1.0.dev5
 scipy
 timm
+backports.cached-property==1.0.2; python_version < '3.8'