Add support for Python 3.12 and Django 5.0 (#49)

* Add support for Python 3.12 and Django 5.0

Django 5.0 adds support for Python 3.12, so we should include that
in the test matrix.

Django's docs recommend dropping support for 4.0 and 4.1 here too,
but that will come in a future PR if desired.

* Update minimum Python version in pyproject.toml

Django 4.0 supports 3.8 through 3.10

.github/workflows/python-package.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11"]
+        python-version: ["3.10", "3.11", "3.12"]
 
     services:
       postgres:

pyproject.toml

@@ -15,8 +15,8 @@ requires = ["poetry-core>=1.0.0", "poetry-dynamic-versioning"]
 build-backend = "poetry_dynamic_versioning.backend"
 
 [tool.poetry.dependencies]
-python = "^3.7"
-django = "^3 || ^4"
+python = "^3.8"
+django = "^4 || ^5"
 
 [tool.poetry.group.dev.dependencies]
 mysqlclient = "^2.1.1"

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 isolated_build = true
-envlist = py{310,311}-dj{31,32,40,41,42,latest}-{mysql,postgresql,sqlite},lint
+envlist = py{310,311}-dj{31,32,40,41,42,50,latest}-{mysql,postgresql,sqlite},lint,py312-dj{50,latest}
 
 [testenv]
 allowlist_externals = poetry
@@ -15,6 +15,7 @@ commands =
     dj40: poetry run pip install "Django>=4.0,<4.1"
     dj41: poetry run pip install "Django>=4.1,<4.2"
     dj42: poetry run pip install "Django>=4.2,<5.0"
+    dj50: poetry run pip install "Django>=5.0,<5.1"
     latest: poetry run pip install -U Django
     poetry run pytest --cov-report xml:coverage{envname}.xml
 
@@ -34,3 +35,4 @@ commands =
 python =
     3.10: py310
     3.11: py311
+    3.12: py312