Add Python 3.12 to the test matrix. (#1816)

* Add Python 3.12 to the test matrix.

* Allow pre-releases for setup actions with GitHub actions.

* Skip unnecessary test for python 3.12

* Update docs/changes.rst

Co-authored-by: Matthias Kestenholz <mk@feinheit.ch>

---------

Co-authored-by: Matthias Kestenholz <mk@feinheit.ch>

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       max-parallel: 5
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
 
     services:
       mariadb:
@@ -36,6 +36,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+        allow-prereleases: true
 
     - name: Get pip cache dir
       id: pip-cache
@@ -77,14 +78,16 @@ jobs:
       fail-fast: false
       max-parallel: 5
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
         database: [postgresql, postgis]
-        # Add psycopg3 to our matrix for 3.10 and 3.11
+        # Add psycopg3 to our matrix for modern python versions
         include:
             - python-version: '3.10'
               database: psycopg3
             - python-version: '3.11'
               database: psycopg3
+            - python-version: '3.12'
+              database: psycopg3
 
     services:
       postgres:
@@ -108,6 +111,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+        allow-prereleases: true
 
     - name: Get pip cache dir
       id: pip-cache
@@ -152,7 +156,7 @@ jobs:
       fail-fast: false
       max-parallel: 5
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
 
     steps:
     - uses: actions/checkout@v3
@@ -161,6 +165,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+        allow-prereleases: true
 
     - name: Get pip cache dir
       id: pip-cache

docs/changes.rst

@@ -4,6 +4,7 @@ Change log
 Pending
 -------
 
+* Added Python 3.12 to test matrix.
 * Removed outdated third-party panels from the list.
 * Avoided the unnecessary work of recursively quoting SQL parameters.
 * Postponed context process in templates panel to include lazy evaluated

tests/panels/test_profiling.py

@@ -1,3 +1,6 @@
+import sys
+import unittest
+
 from django.contrib.auth.models import User
 from django.db import IntegrityError, transaction
 from django.http import HttpResponse
@@ -50,6 +53,10 @@ def test_cum_time_threshold(self):
         self.assertNotIn("render", content)
         self.assertValidHTML(content)
 
+    @unittest.skipUnless(
+        sys.version_info < (3, 12, 0),
+        "Python 3.12 no longer contains a frame for list comprehensions.",
+    )
     def test_listcomp_escaped(self):
         self._get_response = lambda request: listcomp_view(request)
         response = self.panel.process_request(self.request)

tox.ini

@@ -6,7 +6,7 @@ envlist =
     py{38,39,310}-dj32-{sqlite,postgresql,postgis,mysql}
     py310-dj40-sqlite
     py{310,311}-dj41-{sqlite,postgresql,postgis,mysql}
-    py{310,311}-dj{42,50,main}-{sqlite,postgresql,psycopg3,postgis,mysql}
+    py{310,311,312}-dj{42,50,main}-{sqlite,postgresql,psycopg3,postgis,mysql}
 
 [testenv]
 deps =
@@ -50,25 +50,29 @@ allowlist_externals = make
 pip_pre = True
 commands = python -b -W always -m coverage run -m django test -v2 {posargs:tests}
 
-[testenv:py{38,39,310,311}-dj{32,40,41,42,50,main}-{postgresql,psycopg3}]
+
+[testenv:py{38,39,310,311,312}-dj{32,40,41,42,50,main}-{postgresql,psycopg3}]
 setenv =
     {[testenv]setenv}
     DB_BACKEND = postgresql
     DB_PORT = {env:DB_PORT:5432}
 
-[testenv:py{38,39,310,311}-dj{32,40,41,42,50,main}-postgis]
+
+[testenv:py{38,39,310,311,312}-dj{32,40,41,42,50,main}-postgis]
 setenv =
     {[testenv]setenv}
     DB_BACKEND = postgis
     DB_PORT = {env:DB_PORT:5432}
 
-[testenv:py{38,39,310,311}-dj{32,40,41,42,50,main}-mysql]
+
+[testenv:py{38,39,310,311,312}-dj{32,40,41,42,50,main}-mysql]
 setenv =
     {[testenv]setenv}
     DB_BACKEND = mysql
     DB_PORT = {env:DB_PORT:3306}
 
-[testenv:py{38,39,310,311}-dj{32,40,41,42,50,main}-sqlite]
+
+[testenv:py{38,39,310,311,312}-dj{32,40,41,42,50,main}-sqlite]
 setenv =
     {[testenv]setenv}
     DB_BACKEND = sqlite3
@@ -96,6 +100,7 @@ python =
     3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
 
 [gh-actions:env]
 DB_BACKEND =