feat: drop Python 3.8 (#1004)

* feat: drop Python 3.8

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* coverage: patch subprocess

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* Update coverage version in pyproject.toml

---------

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

Author: henryiii

.github/workflows/ci.yml

@@ -23,9 +23,8 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
         python-version:
-          - "3.8"
-          - "3.10"
-          - "3.13"
+          - "3.9"
+          - "3.11"
           - "3.14"
         include:
           - os: ubuntu-22.04
@@ -53,7 +52,7 @@ jobs:
         uses: astral-sh/setup-uv@v7
       - name: Set up Miniconda
         uses: conda-incubator/setup-miniconda@v3
-        if: matrix.python-version == '3.13'
+        if: matrix.python-version == '3.11'
         with:
           auto-update-conda: true
           python-version: ${{ matrix.python-version }}

nox/_options.py

@@ -21,7 +21,7 @@
 import itertools
 import os
 import sys
-from typing import TYPE_CHECKING, Any, Callable, Literal, Sequence
+from typing import TYPE_CHECKING, Any, Callable, Literal
 
 import argcomplete
 
@@ -30,7 +30,7 @@
 from nox.virtualenv import ALL_VENVS
 
 if TYPE_CHECKING:
-    from collections.abc import Iterable
+    from collections.abc import Iterable, Sequence
 
     from nox._option_set import NoxOptions
 

nox/_parametrize.py

@@ -16,7 +16,8 @@
 
 import functools
 import itertools
-from typing import TYPE_CHECKING, Any, Iterable, Union
+from collections.abc import Iterable
+from typing import TYPE_CHECKING, Any, Union
 
 if TYPE_CHECKING:
     from collections.abc import Callable, Sequence

nox/_resolver.py

@@ -15,7 +15,8 @@
 from __future__ import annotations
 
 import itertools
-from typing import Hashable, Iterable, Iterator, Mapping, TypeVar
+from collections.abc import Hashable, Iterable, Iterator, Mapping
+from typing import TypeVar
 
 __all__ = ["CycleError", "lazy_stable_topo_sort"]
 

nox/_typing.py

@@ -14,7 +14,8 @@
 
 from __future__ import annotations
 
-from typing import Sequence, Union
+from collections.abc import Sequence
+from typing import Union
 
 __all__ = ["Python"]
 

nox/manifest.py

@@ -17,7 +17,8 @@
 import ast
 import itertools
 import operator
-from typing import TYPE_CHECKING, Any, Mapping, cast
+from collections.abc import Mapping
+from typing import TYPE_CHECKING, Any, cast
 
 from nox._decorators import Call, Func
 from nox._resolver import CycleError, lazy_stable_topo_sort

nox/tasks.py

@@ -19,7 +19,8 @@
 import json
 import os
 import sys
-from typing import TYPE_CHECKING, Sequence, TypeVar
+from collections.abc import Sequence
+from typing import TYPE_CHECKING, TypeVar
 
 from colorlog.escape_codes import parse_colors
 

nox/tox_to_nox.py

@@ -24,15 +24,14 @@
 from configparser import ConfigParser
 from pathlib import Path
 from subprocess import check_output
-from typing import Any, Iterable
+from typing import TYPE_CHECKING, Any
 
 import jinja2
 
-if sys.version_info < (3, 9):
-    from importlib_resources import files
-else:
-    from importlib.resources import files
+if TYPE_CHECKING:
+    from collections.abc import Iterable
 
+from importlib.resources import files
 
 __all__ = ["main"]
 

noxfile.py

@@ -191,6 +191,8 @@ def _check_python_version(session: nox.Session) -> None:
     python=[
         *ALL_PYTHONS,
         "pypy-3.11",
+        "3.13t",
+        "3.14t",
     ],
     default=False,
 )
@@ -203,7 +205,6 @@ def github_actions_default_tests(session: nox.Session) -> None:
 @nox.session(
     python=[
         *ALL_PYTHONS,
-        "pypy3.8",
         "pypy3.9",
         "pypy3.10",
         "pypy3.11",

pyproject.toml

@@ -18,7 +18,7 @@ license = "Apache-2.0"
 authors = [
   { name = "Alethea Katherine Flowers", email = "me@thea.codes" },
 ]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 classifiers = [
   "Development Status :: 5 - Production/Stable",
   "Environment :: Console",
@@ -29,7 +29,6 @@ classifiers = [
   "Operating System :: Unix",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
@@ -54,7 +53,6 @@ optional-dependencies.pbs = [
   "pbs-installer[all]>=2025.1.6",
 ]
 optional-dependencies.tox_to_nox = [
-  "importlib-resources; python_version<'3.9'",
   "jinja2",
   "tox>=4",
 ]
@@ -73,7 +71,7 @@ dev = [
   { include-group = "test" },
 ]
 test = [
-  "coverage[toml]>=7.2",
+  "coverage[toml]>=7.10.3",
   "pytest>=7.4; python_version>='3.12'",
   "pytest>=7; python_version<'3.12'",
   "pytest-cov>=3",
@@ -158,6 +156,7 @@ markers = [
 
 [tool.coverage]
 run.branch = true
+run.patch = [ "subprocess" ]
 run.relative_files = true
 run.source_pkgs = [ "nox" ]
 run.disable_warnings = [