Various fixes to run test jobs

tox.ini

@@ -1,56 +1,26 @@
 [tox]
 minversion = 3.2.0
-envlist = py39,pep8
-skipsdist = True
+envlist = py3,pep8
 ignore_basepython_conflict = true
 
-
 [testenv]
 basepython = python3
 usedevelop = True
 setenv =
    PYTHONWARNINGS=default::DeprecationWarning
-   OS_STDOUT_CAPTURE=1
-   OS_STDERR_CAPTURE=1
-   OS_TEST_TIMEOUT=60
 deps = -r{toxinidir}/test-requirements.txt
 commands = stestr run {posargs}
 
-[testenv:lower-constraints]
-deps = -r{toxinidir}/test-requirements.txt
-
 [testenv:pep8]
 commands = flake8 {posargs}
 
 [testenv:venv]
 commands = {posargs}
 
-[testenv:cover]
-setenv =
-    VIRTUAL_ENV={envdir}
-    PYTHON=coverage run --source otc_metadata --parallel-mode
-commands =
-    stestr run {posargs}
-    coverage combine
-    coverage html -d cover
-    coverage xml -o cover/coverage.xml
-
-[testenv:docs]
-deps = -r{toxinidir}/doc/requirements.txt
-commands = sphinx-build -W -b html doc/source doc/build/html
-
-[testenv:releasenotes]
-deps = {[testenv:docs]deps}
-commands =
-  sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
-
-[testenv:debug]
-commands = oslo_debug_helper {posargs}
-
 [flake8]
 # E123, E125 skipped as they are invalid PEP-8.
 
 show-source = True
-ignore = E123,E125
+ignore = E123,E125,W503
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build