Enable the UP (pyupgrade) Ruff rules and use Python 3.8+ code, including in docs

Signed-off-by: Edgar Ramírez-Mondragón <edgarrm358@gmail.com>

Author: edgarrmondragon

.pre-commit-config.yaml

@@ -30,6 +30,14 @@ repos:
     rev: v2025.12.8.5
     hooks:
     -   id: doccmd
+        name: Ruff format docs
+        alias: ruff-format-docs
         args: ["--language", "python", "--no-pad-file", "--no-pad-groups", "--command", "ruff format", "docs/"]
         additional_dependencies:
         - ruff==0.14.8
+    -   id: doccmd
+        name: Ruff check fix docs
+        alias: ruff-check-fix-docs
+        args: ["--language", "python", "--no-pad-file", "--no-pad-groups", "--command", "ruff check --fix", "docs/"]
+        additional_dependencies:
+        - ruff==0.14.8

CHANGELOG.md

@@ -16,6 +16,7 @@
 ### Internal
 
 - Use Ruff to give the codebase a consistent format [#66](https://github.com/python-backoff/backoff/pull/66) (from [@edgarrmondragon](https://github.com/edgarrmondragon))
+- Enable the `UP` (pyupgrade) Ruff rules and use Python 3.8+ code, including in docs [#73](https://github.com/python-backoff/backoff/pull/73) (from [@edgarrmondragon](https://github.com/edgarrmondragon))
 
 ## [v2.3.0] - 2025-11-28
 

README.rst

@@ -374,7 +374,7 @@ asynchronous HTTP client/server library.
         max_time=60,
     )
     async def get_url(url):
-        async with aiohttp.ClientSession(raise_for_status=True) as session:
+        async with aiohttp.ClientSession(raise_for_status=True) as session:  # noqa: SIM117
             async with session.get(url) as response:
                 return await response.text()
 

backoff/__init__.py

@@ -1,4 +1,3 @@
-# coding:utf-8
 """
 Function decoration for backoff and retry
 

backoff/_async.py

@@ -1,4 +1,3 @@
-# coding:utf-8
 import asyncio
 import functools
 import inspect

backoff/_common.py

@@ -1,4 +1,3 @@
-# coding:utf-8
 
 import functools
 import logging

backoff/_decorator.py

@@ -1,4 +1,3 @@
-# coding:utf-8
 import inspect
 import logging
 import operator

backoff/_jitter.py

@@ -1,4 +1,3 @@
-# coding:utf-8
 
 import random
 

backoff/_sync.py

@@ -1,4 +1,3 @@
-# coding:utf-8
 import functools
 import time
 

backoff/_typing.py

@@ -1,4 +1,3 @@
-# coding:utf-8
 import logging
 import sys
 from types import FunctionType