fix

tox.ini

@@ -83,8 +83,8 @@ setenv =
     LUIGI_CONFIG_PATH={toxinidir}/test/testconfig/luigi.cfg
     TEST_VISUALISER=1
 commands =
-    python --version
-    pytest test/visualiser
+    {envpython} --version
+    {envpython} -m pytest test/visualiser
 
 # Flake8 Configuration, inspired from https://gitlab.com/pycqa/flake8/blob/master/tox.ini
 # By putting it here, local flake8 runs will also pick it up.
@@ -96,13 +96,13 @@ builtins = unicode
 runner = uv-venv-lock-runner
 dependency_groups = lint
 commands =
-    flake8 --exclude=doc,.tox
-    flake8 --max-line-length=100 --ignore=E265 doc
+    {envpython} -m flake8 --exclude=doc,.tox
+    {envpython} -m flake8 --max-line-length=100 --ignore=E265 doc
 
 [testenv:isort]
 runner = uv-venv-lock-runner
 dependency_groups = lint
-commands = isort -w 120 -rc luigi test examples bin
+commands = {envpython} -m isort -w 120 -rc luigi test examples bin
 
 [testenv:docs]
 runner = uv-venv-lock-runner
@@ -111,7 +111,7 @@ runner = uv-venv-lock-runner
 dependency_groups = docs
 commands =
 # build API docs
-    sphinx-apidoc -o doc/api -T luigi --separate
+    {envpython} -m sphinx-apidoc -o doc/api -T luigi --separate
 
 # build HTML docs
-    sphinx-build -W -b html -d {envtmpdir}/doctrees doc doc/_build/html
+    {envpython} -m sphinx-build -W -b html -d {envtmpdir}/doctrees doc doc/_build/html