Stop testing python 2

Since it's no longer supported past Train, lets stop
running the tests.
Please also see the related neutron patch:
I1c171ab906a3b4c66558163ad26947ebf710a276

Change-Id: Ic5361ac8495493d45603a57fcaac5f8385c681b7

.zuul.yaml

@@ -2,8 +2,8 @@
     templates:
       - build-openstack-docs-pti
       - check-requirements
-      - openstack-python-jobs-neutron
+      - openstack-python3-ussuri-jobs-neutron
-      - openstack-python3-train-jobs
+      - openstack-python3-ussuri-jobs
     check:
       jobs:
         - vmware-tox-lower-constraints
@@ -18,18 +18,6 @@
               - openstack/neutron-vpnaas
               - x/tap-as-a-service
               - openstack/octavia
-        - openstack-tox-py27:
-            timeout: 5400
-            required-projects:
-              - openstack/neutron
-              - openstack/networking-l2gw
-              - openstack/networking-sfc
-              - x/vmware-nsxlib
-              - openstack/neutron-fwaas
-              - openstack/neutron-dynamic-routing
-              - openstack/neutron-vpnaas
-              - x/tap-as-a-service
-              - openstack/octavia
         - openstack-tox-py36:
             timeout: 5400
             required-projects:
@@ -69,18 +57,6 @@
               - openstack/neutron-vpnaas
               - x/tap-as-a-service
               - openstack/octavia
-        - openstack-tox-py27:
-            timeout: 5400
-            required-projects:
-              - openstack/neutron
-              - openstack/networking-l2gw
-              - openstack/networking-sfc
-              - x/vmware-nsxlib
-              - openstack/neutron-fwaas
-              - openstack/neutron-dynamic-routing
-              - openstack/neutron-vpnaas
-              - x/tap-as-a-service
-              - openstack/octavia
         - openstack-tox-py36:
             timeout: 5400
             required-projects:

TESTING.rst

@@ -84,7 +84,7 @@ environments for running test cases. It uses `Testr`_ for managing the running
 of the test cases.
 
 Tox handles the creation of a series of `virtualenvs`_ that target specific
-versions of Python (2.7, 3.3, etc).
+versions of Python.
 
 Testr handles the parallel execution of series of test cases as well as
 the tracking of long-running tests and other things.
@@ -131,7 +131,7 @@ vmware_nsx/tests/unit/nsx_v/test_plugin.py::
 
 or::
 
-      $ tox -e py27 vmware_nsx.tests.unit.nsx_v.test_plugin.TestSubnetsV2
+      $ tox -e py37 vmware_nsx.tests.unit.nsx_v.test_plugin.TestSubnetsV2
 
 Adding more tests
 ~~~~~~~~~~~~~~~~~

bindep.txt

@@ -10,7 +10,6 @@ libffi-devel [platform:rpm]
 
 # MySQL and PostgreSQL databases since some jobs are set up in
 # OpenStack infra that need these like
-# periodic-neutron-py27-with-oslo-master and
 # periodic-neutron-py35-with-neutron-lib-master.
 haproxy
 libmysqlclient-dev [platform:dpkg test]

setup.cfg

@@ -12,9 +12,6 @@ classifier =
     Intended Audience :: System Administrators
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
-    Programming Language :: Python
-    Programming Language :: Python :: 2
-    Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
@@ -125,6 +122,3 @@ autodoc_index_modules = 1
 # NOTE(boden): enable and validate once a new version of pbr is released.
 # More info can be found on the ML:
 # http://lists.openstack.org/pipermail/openstack-dev/2016-June/097849.html
-
-[wheel]
-universal = 1

tox.ini

@@ -1,9 +1,10 @@
 [tox]
-envlist = py27,py37,pep8
+envlist = py37,pep8
 minversion = 2.0
 skipsdist = True
 
 [testenv]
+basepython = python3
 setenv = VIRTUAL_ENV={envdir}
          PYTHONWARNINGS=default::DeprecationWarning
 passenv = TRACE_FAILONLY GENERATE_HASHES http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
@@ -39,7 +40,6 @@ commands =
 
 
 [testenv:functional]
-basepython = python3
 setenv = {[testenv]setenv}
          {[testenv:common]setenv}
          OS_TEST_PATH=./vmware_nsx/tests/functional
@@ -49,7 +49,6 @@ deps =
   -r{toxinidir}/vmware_nsx/tests/functional/requirements.txt
 
 [testenv:dsvm-functional]
-basepython = python3
 setenv = OS_SUDO_TESTING=1
          OS_FAIL_ON_MISSING_DEPS=1
          OS_TEST_TIMEOUT=180
@@ -64,15 +63,10 @@ commands =
 sitepackages = True
 
 [testenv:releasenotes]
-basepython = python3
 deps = -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt}
        -r{toxinidir}/doc/requirements.txt
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
-[testenv:py27]
-basepython = python2.7
-setenv = OS_FAIL_ON_MISSING_DEPS=1
-
 [testenv:py36]
 basepython = python3.6
 setenv = OS_FAIL_ON_MISSING_DEPS=1
@@ -81,17 +75,7 @@ setenv = OS_FAIL_ON_MISSING_DEPS=1
 basepython = python3.7
 setenv = OS_FAIL_ON_MISSING_DEPS=1
 
-[testenv:py27-dev]
-basepython = python2.7
-commands =
-    {[testenv:dev]commands}
-    pip freeze
-    stestr run {posargs}
-whitelist_externals =
-    stestr
-
 [testenv:py3-dev]
-basepython = python3.7
 commands =
     {[testenv:dev]commands}
     pip freeze
@@ -109,7 +93,6 @@ whitelist_externals =
     stestr
 
 [testenv:pep8]
-basepython = python3
 commands =
   # If it is easier to add a check via a shell script, consider adding it in this file
   sh ./tools/misc-sanity-checks.sh
@@ -124,7 +107,6 @@ whitelist_externals =
     bash
 
 [testenv:pep8-dev]
-basepython = python3
 commands =
     {[testenv:dev]commands}
     pip freeze
@@ -143,13 +125,11 @@ whitelist_externals =
 commands = bandit -r vmware_nsx -n 5 -ll
 
 [testenv:cover]
-basepython = python3
 commands =
   python setup.py testr --coverage --testr-args='{posargs}'
   coverage report
 
 [testenv:docs]
-basepython = python3
 deps = -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt}
        -r{toxinidir}/doc/requirements.txt
 commands = sphinx-build -b html doc/source doc/build/html
@@ -195,7 +175,6 @@ commands =
     check-uuid --fix
 
 [testenv:lower-constraints]
-basepython = python3
 deps =
   -c{toxinidir}/lower-constraints.txt
   -r{toxinidir}/test-requirements.txt
@@ -203,7 +182,6 @@ deps =
   -r{toxinidir}/requirements.txt
 
 [testenv:lower-constraints-dev]
-basepython = python3
 commands =
     {[testenv:dev]commands}
     pip freeze
@@ -218,7 +196,6 @@ deps =
 commands = {posargs}
 
 [testenv:requirements-check-dev]
-basepython = python3
 commands =
     pip install -q -e "git+https://opendev.org/openstack/requirements#egg=requirements"
     pip freeze