Overhaul tox config for more python versions

setup.cfg

@@ -26,6 +26,12 @@ classifiers =
         Operating System :: OS Independent
         Programming Language :: Python
         Programming Language :: Python :: 3
+        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
         Topic :: Internet :: WWW/HTTP
         Topic :: Office/Business
         Topic :: Software Development :: Libraries :: Python Modules

tox.ini

@@ -1,25 +1,28 @@
 
 [tox]
-envlist = py36, py37, py39
+envlist = py36, py37, py38, py39, py310, py311
+
+# TODO: can remove this when we drop py36 support
+# nb. need this for testing older python versions
+# https://tox.wiki/en/latest/faq.html#testing-end-of-life-python-versions
+requires = virtualenv<20.22.0
 
 [testenv]
-commands =
-        pip install --upgrade pip
-        pip install --upgrade setuptools wheel
-        pip install --upgrade --upgrade-strategy eager Tailbone[tests] rattail[bouncer,db] rattail-tempmon
-        pytest {posargs}
+deps = rattail-tempmon
+extras = tests
+commands = pytest {posargs}
+
+[testenv:py37]
+# nb. Chameleon 4.3 requires Python 3.9+
+deps = Chameleon<4.3
 
 [testenv:coverage]
 basepython = python3
-commands =
-        pip install --upgrade pip
-        pip install --upgrade --upgrade-strategy eager Tailbone[tests] rattail[bouncer,db] rattail-tempmon
-        pytest --cov=tailbone --cov-report=html
+extras = tests
+commands = pytest --cov=tailbone --cov-report=html
 
 [testenv:docs]
 basepython = python3
 changedir = docs
-commands =
-        pip install --upgrade pip
-        pip install --upgrade --upgrade-strategy eager Tailbone[docs] rattail[bouncer,db] rattail-tempmon
-        sphinx-build -b html -d {envtmpdir}/doctrees -W -T . {envtmpdir}/docs
+extras = docs
+commands = sphinx-build -b html -d {envtmpdir}/doctrees -W -T . {envtmpdir}/docs