chore: drop Python 3.9 support (EOL)

.github/workflows/ci.yaml

@@ -18,8 +18,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - python: "3.9"
-            tox: py39
           - python: "3.10"
             tox: py310
           - python: "3.11"

.mergify.yml

@@ -7,7 +7,6 @@ queue_rules:
         - author = jd
         - "#approved-reviews-by >= 1"
         - author = dependabot[bot]
-      - "check-success=test (3.9, py39)"
       - "check-success=test (3.10, py310)"
       - "check-success=test (3.11, py311)"
       - "check-success=test (3.12, py312)"

pyproject.toml

@@ -11,7 +11,7 @@ build-backend="setuptools.build_meta"
 [tool.ruff]
 line-length = 88
 indent-width = 4
-target-version = "py39"
+target-version = "py310"
 
 [tool.mypy]
 strict = true

releasenotes/notes/drop-python-3.9-ecfa2d7db9773e96.yaml

@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    Python 3.9 has reached end-of-life and is no longer supported.
+    The minimum supported version is now Python 3.10.

setup.cfg

@@ -13,7 +13,6 @@ classifier =
     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
@@ -23,7 +22,7 @@ classifier =
 
 [options]
 install_requires =
-python_requires = >=3.9
+python_requires = >=3.10
 packages = find:
 
 [options.packages.find]

tenacity/__init__.py

@@ -101,12 +101,7 @@
 WrappedFn = t.TypeVar("WrappedFn", bound=t.Callable[..., t.Any])
 
 
-dataclass_kwargs = {}
-if sys.version_info >= (3, 10):
-    dataclass_kwargs.update({"slots": True})
-
-
-@dataclasses.dataclass(**dataclass_kwargs)
+@dataclasses.dataclass(slots=True)
 class IterState:
     actions: t.List[t.Callable[["RetryCallState"], t.Any]] = dataclasses.field(
         default_factory=list
@@ -486,13 +481,7 @@ def __call__(
                 return do  # type: ignore[no-any-return]
 
 
-if sys.version_info >= (3, 9):
-    FutureGenericT = futures.Future[t.Any]
-else:
-    FutureGenericT = futures.Future
-
-
-class Future(FutureGenericT):
+class Future(futures.Future[t.Any]):
     """Encapsulates a (future or past) attempted call to a target function."""
 
     def __init__(self, attempt_number: int) -> None:

tests/test_tenacity.py

@@ -17,7 +17,6 @@
 import datetime
 import logging
 import re
-import sys
 import time
 import typing
 import unittest
@@ -28,6 +27,7 @@
 from unittest import mock
 
 import pytest
+from typeguard import check_type
 
 import tenacity
 from tenacity import RetryCallState, RetryError, Retrying, retry
@@ -1729,17 +1729,8 @@ def test_retry_error_is_pickleable(self):
 
 
 class TestRetryTyping(unittest.TestCase):
-    @pytest.mark.skipif(
-        sys.version_info < (3, 0), reason="typeguard not supported for python 2"
-    )
     def test_retry_type_annotations(self):
         """The decorator should maintain types of decorated functions."""
-        # Just in case this is run with unit-test, return early for py2
-        if sys.version_info < (3, 0):
-            return
-
-        # Function-level import because we can't install this for python 2.
-        from typeguard import check_type
 
         def num_to_str(number):
             # type: (int) -> str

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 # we only test trio on latest python version
-envlist = py3{9,10,11,12,13,14,14-trio}, pep8, pypy3
+envlist = py3{10,11,12,13,14,14-trio}, pep8, pypy3
 skip_missing_interpreters = True
 
 [testenv]
@@ -11,9 +11,9 @@ deps =
     .[doc]
     trio: trio
 commands =
-    py3{8,9,10,11,12,13,14},pypy3: pytest {posargs}
-    py3{8,9,10,11,12,13,14},pypy3: sphinx-build -a -E -W -b doctest doc/source doc/build
-    py3{8,9,10,11,12,13,14},pypy3: sphinx-build -a -E -W -b html doc/source doc/build
+    py3{10,11,12,13,14},pypy3: pytest {posargs}
+    py3{10,11,12,13,14},pypy3: sphinx-build -a -E -W -b doctest doc/source doc/build
+    py3{10,11,12,13,14},pypy3: sphinx-build -a -E -W -b html doc/source doc/build
 
 [testenv:pep8]
 basepython = python3