Workaround for tox w/o setup.py bug

Related: tox-dev/tox#2197

tox.ini

@@ -18,7 +18,10 @@ requires =
     pip >= 20.2.4
 
 [testenv]
-usedevelop = True
+# both options needed to workaround https://github.com/tox-dev/tox/issues/2197
+usedevelop = False
+skip_install = True
+
 # do not put * in passenv as it may break builds do to reduced isolation
 passenv =
     CI
@@ -45,19 +48,14 @@ setenv =
     PYTHONUNBUFFERED=1
     _EXTRAS=-l --cov=molecule --no-cov-on-fail --cov-report xml:{envlogdir}/coverage.xml --html={envlogdir}/reports.html --self-contained-html
 deps =
+    --editable .[docker,lint,podman,test,windows]
     devel: git+https://github.com/ansible/ansible#egg=ansible-core
     # pytest-molecule not used but we want to check that it does not conflict
     devel: git+https://github.com/ansible-community/pytest-molecule#egg=pytest-molecule
     dockerfile: ansible>=2.10
     selinux
     py{36,37}: importlib-metadata>=0.12
     py: ansible-core
-extras =
-    docker
-    lint
-    podman
-    test
-    windows
 ; commands_pre =
 ;     find {toxinidir} -type f -not -path '{toxinidir}/.tox/*' -path '*/__pycache__/*' -name '*.py[c|o]' -delete
 ;     sh -c 'find {homedir}/.cache -type d -path "*/molecule_*" -exec rm -rfv \{\} +;'