Improve autofixing bits in tox

Author: JohnGarbutt

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 4.0.0
-envlist = py3,ruff,codespell,pep8,mypy
+envlist = py3,ruff,black,codespell,autofix,mypy
 skipsdist = True
 
 [testenv]
@@ -15,11 +15,15 @@ deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands = stestr run {posargs}
 
-[testenv:pep8]
+[testenv:autofix]
 commands =
+    black {tox_root}
     ruff format {tox_root}
     codespell {tox_root} -w
-    flake8 {postargs}
+    ruff check {tox_root} --fix
+
+[testenv:black]
+commands = black {tox_root} --check
 
 [testenv:codespell]
 commands = codespell {posargs}
@@ -46,11 +50,3 @@ commands =
 
 [testenv:mypy]
 commands = mypy {tox_root} {posargs}
-
-[flake8]
-# select only hacking errors
-select = H
-show-source = True
-ignore = H102
-builtins = _
-exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build