Deprecate Python 3.9 support

Author: Alan4506

.changes/next-release/feature-Python-77054.json

@@ -0,0 +1,5 @@
+{
+  "type": "feature",
+  "category": "Python",
+  "description": "End of support for Python 3.9"
+}

.github/workflows/lint.yml

@@ -16,9 +16,9 @@ jobs:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
       with:
         persist-credentials: false
-    - name: Set up Python 3.9
+    - name: Set up Python 3.10
       uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
       with:
-        python-version: 3.9
+        python-version: "3.10"
     - name: Run pre-commit
       uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507

.github/workflows/run-crt-test.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.15-dev"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.15-dev"]
         os: [ubuntu-latest, macOS-latest, windows-latest]
 
     steps:

.github/workflows/run-tests.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.15-dev"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.15-dev"]
         os: [ubuntu-latest, macOS-latest, windows-latest]
 
     steps:

pyproject.toml

@@ -37,7 +37,7 @@ exclude = [
 line-length = 79
 indent-width = 4
 
-target-version = "py39"
+target-version = "py310"
 
 [tool.ruff.lint]
 # Enable Pyflakes (`F`) and a subset of the pycodestyle (`E`)  codes by default.

requirements-dev-lock.txt

@@ -1,5 +1,5 @@
 #
-# This file is autogenerated by pip-compile with Python 3.9
+# This file is autogenerated by pip-compile with Python 3.10
 # by the following command:
 #
 #    pip-compile --allow-unsafe --generate-hashes --output-file=requirements-dev-lock.txt requirements-dev.txt

s3transfer/__init__.py

@@ -131,7 +131,6 @@ def __call__(self, bytes_amount):
 import os
 import queue
 import random
-import socket
 import string
 import threading
 from logging import NullHandler
@@ -617,7 +616,7 @@ def _download_range(
                         current_index += len(chunk)
                     return
                 except (
-                    socket.timeout,
+                    TimeoutError,
                     OSError,
                     ReadTimeoutError,
                     IncompleteReadError,
@@ -843,7 +842,7 @@ def _get_object(self, bucket, key, filename, extra_args, callback):
                     bucket, key, filename, extra_args, callback
                 )
             except (
-                socket.timeout,
+                TimeoutError,
                 OSError,
                 ReadTimeoutError,
                 IncompleteReadError,

setup.py

@@ -33,7 +33,7 @@ def get_version():
         'crt': 'botocore[crt]>=1.37.4,<2.0a.0',
     },
     license="Apache License 2.0",
-    python_requires=">= 3.9",
+    python_requires=">= 3.10",
     classifiers=[
         'Development Status :: 3 - Alpha',
         'Intended Audience :: Developers',
@@ -42,7 +42,6 @@ def get_version():
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3 :: Only',
-        'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py39,py310,py311,py312,py313,py314
+envlist = py310,py311,py312,py313,py314
 
 # Comment to build sdist and install into virtualenv
 # This is helpful to test installation but takes extra time