Drop support for end-of-life Python 3.7 and 3.8 (#563)

Author: johnthagen

.github/workflows/build.yml

@@ -9,11 +9,11 @@ on:
 
 jobs:
     build:
-        runs-on: ubuntu-22.04
+        runs-on: ubuntu-24.04
         strategy:
             matrix:
                 python-version:
-                    ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+                    ["3.9", "3.10", "3.11", "3.12", "3.13"]
         steps:
             - uses: actions/checkout@v4
             - name: Set up Python ${{ matrix.python-version }}
@@ -25,10 +25,7 @@ jobs:
                   python -m pip install --upgrade pip
                   python -m pip install -r requirements/tests.txt
                   python -m pip install -r requirements.txt
-            # TODO: Remove this conditional when Python 3.7 is dropped and Flake8 executes on
-            # all Python versions in matrix.
-            - if: matrix.python-version == '3.8'
-              name: Linting
+            - name: Linting
               run: flake8
             # Environments are selected using tox-gh-actions configuration in tox.ini.
             - name: Test with tox

.pre-commit-config.yaml

@@ -45,7 +45,7 @@ repos:
       rev: "v3.20.0"
       hooks:
           - id: pyupgrade
-            args: ["--py37-plus", "--keep-mock"]
+            args: ["--py39-plus", "--keep-mock"]
     - repo: https://github.com/hhatto/autopep8
       rev: "v2.3.2"
       hooks:

docs/changelog.rst

@@ -6,6 +6,7 @@ Unreleased
 
 * Use environment variable for PostgreSQL password to prevent password leakage in logs/emails
 * This repository has been transferred out of Jazzband due to logistical concerns.
+* Drop support for end-of-life Python 3.7 and 3.8.
 
 4.3.0 (2025-05-09)
 ----------

pyproject.toml

@@ -1,5 +1,5 @@
 [tool.black]
-target-version = ['py37']
+target-version = ['py39']
 extend-exclude = 'migrations'
 
 [tool.isort]

setup.py

@@ -28,7 +28,7 @@ def get_test_requirements():
     author_email="archiethemonger@gmail.com",
     long_description=(root_dir / "README.rst").read_text(encoding="utf-8"),
     long_description_content_type="text/x-rst",
-    python_requires=">=3.7",
+    python_requires=">=3.9",
     install_requires=get_requirements(),
     tests_require=get_test_requirements(),
     include_package_data=True,
@@ -61,8 +61,6 @@ def get_test_requirements():
         "Natural Language :: English",
         "Operating System :: OS Independent",
         "Programming Language :: Python",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{37,38,39,310,311,312,313}-django{32,42,50,51,52,master},lint,docs,functional
+envlist = py{39,310,311,312,313}-django{32,42,50,51,52,master},lint,docs,functional
 
 [testenv]
 passenv = *
@@ -18,8 +18,6 @@ commands = {posargs:coverage run runtests.py}
 # Configure which test environments are run for each Github Actions Python version.
 [gh-actions]
 python =
-    3.7: py37-django{32},functional
-    3.8: py38-django{32,42},functional
     3.9: py39-django{32,42},functional
     3.10: py310-django{32,42,50,51,52},functional
     3.11: py311-django{42,50,51,52},functional