Adjust tests for python3.12, drop old taskwarrior version

Basically merges parts of the original taskw PR
ralphbean/taskw#168 and
ralphbean/taskw#167

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
@@ -23,12 +23,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
-        taskwarrior-version: [2.5.0, 2.5.1, 2.5.3]
-        # exclude:
-        #   # Taskwarriror 2.5.3 only supported on Python 3.7+.
-        #   - python-version: 3.5
-        #     taskwarrior-version: 2.5.3
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        taskwarrior-version: [2.5.3, 2.6.2]
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{matrix.python-version}}

pyproject.toml

@@ -14,11 +14,11 @@ include = ["taskw_ng/py.typed", "CHANGELOG.md"]
 classifiers = [
   "Development Status :: 5 - Production/Stable",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.4",
-  "Programming Language :: Python :: 3.5",
-  "Programming Language :: Python :: 3.6",
-  "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",
+  "Programming Language :: Python :: 3.12",
   "License :: OSI Approved :: GNU General Public License (GPL)",
   "Intended Audience :: Developers",
 ]
@@ -34,6 +34,7 @@ python = "^3.8"
 kitchen = "^1.2.6"
 pytz = "^2023.3.post1"
 python-dateutil = "^2.8.2"
+packaging = "^23.2"
 
 # dev dependencies -------------------------------------------------------------
 [tool.poetry.dev-dependencies]
@@ -48,7 +49,7 @@ pyfakefs = "^4.5.3"
 pylint = "^2.12.2"
 pyright = "*"
 pytest = "*"
-tox = "<3.0.0"
+tox = "^4.12.1"
 types-PyYAML = "^5.4.1"
 types-python-dateutil = "^2.8.3"
 types-setuptools = "^57.4.4"

tox.ini

@@ -1,20 +1,17 @@
 [tox]
-envlist = py{35,36,37,38}-tw{250,251} py{38}-tw{253}
+envlist = py{38,39,310,311,312}-tw{253,262}
 downloadcache = {toxworkdir}/_download/
 
 [testenv]
 basepython =
-    py35: python3.5
-    py36: python3.6
-    py37: python3.7
     py38: python3.8
-deps =
-    -r{toxinidir}/requirements.txt
-    -r{toxinidir}/test_requirements.txt
+    py39: python3.9
+    py310: python3.10
+    py311: python3.11
+    py312: python3.12
 setenv =
-    tw250: TASKWARRIOR=v2.5.0
-    tw251: TASKWARRIOR=v2.5.1
     tw253: TASKWARRIOR=v2.5.3
+    tw262: TASKWARRIOR=v2.6.2
 sitepackages = False
 commands =
     {toxinidir}/.tox_build_taskwarrior.sh "{envdir}" "{toxinidir}"