Drop python 2.7 support and testing

OpenStack is dropping the py2.7 support in ussuri cycle.

ironic-inspector is ready with python 3 and ok to drop the
python 2.7 support.

Complete discussion & schedule can be found in
- http://lists.openstack.org/pipermail/openstack-discuss/2019-October/010142.html
- https://etherpad.openstack.org/p/drop-python2-support

Ussuri Communtiy-wide goal - https://review.opendev.org/#/c/691178/

Change-Id: Ifae00adf782b6a7d71c4dc45a69a9638b8514d30

doc/source/contributor/jobs-description.rst

@@ -34,8 +34,6 @@ The description of each jobs that runs in the CI when you submit a patch for
      - Deploys Ironic and Ironic Inspector in DevStack under Python3.
        Runs tempest tests that match the regex `Inspector` and deploys 1
        virtual baremetal.
-   * - openstack-tox-functional
-     - Run tox-based functional tests for Ironic Inspector under Python2
    * - openstack-tox-functional-py36
      - Run tox-based functional tests for Ironic Inspector under Python3.6
    * - bifrost-integration-tinyipa-ubuntu-xenial

releasenotes/notes/drop-py-2-7-bd0a8558f4321435.yaml

@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    Python 2.7 support has been dropped. Last release of ironic-inspector
+    to support Python 2.7 is OpenStack Train. The minimum version of
+    Python now supported by ironic-inspector is Python 3.6.

setup.cfg

@@ -14,8 +14,6 @@ classifier =
     License :: OSI Approved :: Apache Software License
     Operating System :: OS Independent
     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

test-requirements.txt

@@ -7,7 +7,6 @@ doc8>=0.6.0 # Apache-2.0
 flake8-import-order>=0.13 # LGPLv3
 hacking>=1.0.0,<1.2.0 # Apache-2.0
 mock>=3.0.0 # BSD
-sphinx!=1.6.6,!=1.6.7,>=1.6.2,<2.0.0;python_version=='2.7' # BSD
 sphinx!=1.6.6,!=1.6.7,>=1.6.2;python_version>='3.4' # BSD
 sphinxcontrib-svg2pdfconverter>=0.1.0 # BSD
 openstackdocstheme>=1.20.0 # Apache-2.0

tox.ini

@@ -1,7 +1,8 @@
 [tox]
-envlist = py3,py27,pep8,functional
+envlist = py3,pep8,functional-py36
 
 [testenv]
+basepython = python3
 usedevelop = True
 install_command = pip install -U {opts} {packages}
 deps =
@@ -18,21 +19,17 @@ setenv =
 passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
 
 [testenv:venv]
-basepython = python3
 commands = {posargs}
 
 [testenv:api-ref]
-basepython = python3
 whitelist_externals = bash
 commands =
   sphinx-build -W -b html -d api-ref/build/doctrees api-ref/source api-ref/build/html
 
 [testenv:releasenotes]
-basepython = python3
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 [testenv:cover]
-basepython = python3
 setenv =
     {[testenv]setenv}
     PYTHON=coverage run --branch --omit='*test*' --source ironic_inspector --parallel-mode
@@ -44,34 +41,24 @@ commands =
     coverage html -d ./cover --omit='*test*'
 
 [testenv:pep8]
-basepython = python3
 commands =
     flake8 ironic_inspector
     doc8 README.rst CONTRIBUTING.rst doc/source
 
-[testenv:functional]
-basepython = python2.7
-commands =
-    python -m ironic_inspector.test.functional {posargs}
-
 [testenv:functional-py36]
-basepython = python3
 commands =
     python3 -m ironic_inspector.test.functional {posargs}
 
 [testenv:genconfig]
-basepython = python3
 envdir = {toxworkdir}/venv
 commands = oslo-config-generator --config-file {toxinidir}/tools/config-generator.conf
 
 [testenv:genpolicy]
-basepython = python3
 sitepackages = False
 envdir = {toxworkdir}/venv
 commands = oslopolicy-sample-generator --config-file {toxinidir}/tools/policy-generator.conf
 
 [testenv:genstates]
-basepython = python3
 deps = {[testenv]deps}
 commands = {toxinidir}/tools/states_to_dot.py -f {toxinidir}/doc/source/images/states.svg --format svg
 
@@ -90,7 +77,6 @@ application-import-names = ironic_inspector
 import_exceptions = ironicclient.exceptions,ironic_inspector.common.i18n
 
 [testenv:docs]
-basepython = python3
 setenv = PYTHONHASHSEED=0
 sitepackages = False
 deps = -r{toxinidir}/test-requirements.txt
@@ -98,7 +84,6 @@ commands =
   python setup.py build_sphinx
 
 [testenv:pdf-docs]
-basepython = python3
 whitelist_externals = make
 deps = {[testenv:docs]deps}
 commands =
@@ -106,14 +91,12 @@ commands =
   make -C doc/build/pdf
 
 [testenv:lower-constraints]
-basepython = python3
 deps =
   -c{toxinidir}/lower-constraints.txt
   -r{toxinidir}/test-requirements.txt
   -r{toxinidir}/requirements.txt
 
 [testenv:bandit]
-basepython = python3
 deps = -r{toxinidir}/test-requirements.txt
 commands = bandit -r ironic_inspector -x test -n 5 -ll -c tools/bandit.yml
 

zuul.d/project.yaml

@@ -3,7 +3,6 @@
       - check-requirements
       - openstack-cover-jobs
       - openstack-lower-constraints-jobs
-      - openstack-python-jobs
       - openstack-python3-ussuri-jobs
       - publish-openstack-docs-pti
       - release-notes-jobs-python3
@@ -13,7 +12,6 @@
         - ironic-inspector-tempest
         - ironic-inspector-tempest-discovery
         - ironic-inspector-non-standalone-tempest
-        - openstack-tox-functional
         - openstack-tox-functional-py36
         - bifrost-integration-tinyipa-ubuntu-xenial:
             voting: false
@@ -26,5 +24,4 @@
         - ironic-inspector-tempest
         - ironic-inspector-tempest-discovery
         - ironic-inspector-non-standalone-tempest
-        - openstack-tox-functional
         - openstack-tox-functional-py36