python bumps

tox.ini

@@ -2,7 +2,7 @@
 isolated_build = True
 skipsdist = true
 usedevelop = true
-envlist = py{38,39,310,311,py}-{all,core}, docs
+envlist = py{38,39,310,311,312,py}-{all,core}, docs
 
 [testenv]
 setenv =
@@ -13,6 +13,7 @@ basepython =
     py39: python3.9
     py310: python3.10
     py311: python3.11
+    py312: python3.12
     pypy: pypy3
 deps=
     coverage
@@ -25,7 +26,7 @@ commands =
 
 [testenv:docs]
 description = invoke sphinx-build to build the HTML docs
-basepython = python3.9
+basepython = python3.11
 skip_install = True
 deps = -r{toxinidir}/docs/requirements.txt
 install_command = python -I -m pip install {opts} {packages}