Drop Python 3.8 support due to end-of-life

.github/workflows/main.yml

@@ -15,7 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
 
     name: Python ${{ matrix.python-version}}
     steps:

justfile

@@ -13,11 +13,11 @@ test: devenv
 
 # Format files
 format: devenv
-    uv run tox exec -e py38-lint -- ruff format
+    uv run tox exec -e py39-lint -- ruff format
 
 # Lint files
 lint: devenv
-    uv run tox -e py38-lint
+    uv run tox -e py39-lint
 
 # Wipe devenv and build artifacts
 clean:

pyproject.toml

@@ -6,15 +6,14 @@ readme = "README.rst"
 keywords = ["conf", "config", "configuration", "ini", "env", "yaml"]
 authors = [{name = "Will Kahn-Greene"}]
 license = {text = "MPLv2"}
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 dependencies = []
 classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Developers",
     "License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)",
     "Natural Language :: English",
     "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",
@@ -48,8 +47,7 @@ dev = [
     "tox-uv",
     "twine",
     "types-PyYAML",
-    "Sphinx==7.2.6; python_version > '3.8'",
-    "Sphinx==6.2.1; python_version <= '3.8'",
+    "Sphinx==7.2.6",
     "sphinx_rtd_theme",
 ]
 
@@ -60,7 +58,7 @@ build-backend = "setuptools.build_meta"
 
 
 [tool.ruff]
-target-version = "py38"
+target-version = "py39"
 src = ["src"]
 line-length = 88
 
@@ -77,7 +75,7 @@ docstring-quotes = "double"
 
 
 [tool.mypy]
-python_version = "3.8"
+python_version = "3.9"
 disallow_untyped_defs = true
 
 [[tool.mypy.overrides]]
@@ -104,11 +102,10 @@ filterwarnings = [
 legacy_tox_ini = """
 [tox]
 envlist =
-    py38
-    py38-doctest
-    py38-lint
-    py38-typecheck
     py39
+    py39-doctest
+    py39-lint
+    py39-typecheck
     py310
     py311
     py312
@@ -117,7 +114,6 @@ uv_python_preference = only-managed
 
 [gh-actions]
 python =
-    3.8: py38
     3.9: py39
     3.10: py310
     3.11: py311
@@ -128,19 +124,19 @@ python =
 extras = dev,ini,sphinx,yaml
 commands = pytest {posargs} tests/
 
-[testenv:py38-doctest]
+[testenv:py39-doctest]
 commands = pytest --doctest-modules src/
 
-[testenv:py38-lint]
+[testenv:py39-lint]
 allowlist_externals = ruff
-basepython = python3.8
+basepython = python3.9
 changedir = {toxinidir}
 commands =
     ruff format --check tests docs examples
     ruff check src tests docs examples
 
-[testenv:py38-typecheck]
-basepython = python3.8
+[testenv:py39-typecheck]
+basepython = python3.9
 changedir = {toxinidir}
 commands =
     mypy src/everett/

tests/test_sphinxext.py

@@ -4,7 +4,6 @@
 
 """Test sphinxext directives."""
 
-import sys
 from textwrap import dedent
 
 import pytest
@@ -530,12 +529,6 @@ def test_option_parser(self, tmpdir, capsys):
         assert "WARNING" not in captured.err
 
 
-@pytest.mark.skipif(
-    # NOTE(willkg): The automodule stuff doesn't work with Python < 3.8 because
-    # ast.get_source_segment() isn't available.
-    sys.version_info < (3, 8),
-    reason="requires Python 3.8 or higher",
-)
 class Test_automoduleconfig:
     def test_basic(self, tmpdir, capsys):
         rst = dedent(