Cleanup py27 support

This repo is now testing only with Python 3, so let's make
a few cleanups:
- Remove python 2.7 stanza from setup.py
- Add requires on python >= 3.6 to setup.cfg so that pypi and pip
  know about the requirement
- Remove obsolete sections from setup.cfg
- Update classifiers
- Update requirements, no need for python_version anymore
- Cleanup doc/source/conf.py to remove now obsolete content.
- Use newer openstackdocstheme and Sphinx versions
- Remove install_command from tox.ini, the default is fine
- Remove hacking from doc/requirements, we don't need to autodoc it.
- Remove Babel, this repo does not use it.

Change-Id: I8ad7b5e6ef11ea51c587ff58bfc54aee4fcda9da

doc/requirements.txt

@@ -3,13 +3,12 @@
 # process, which may cause wedges in the gate later.
 
 # For generationg sphinx documentation
-openstackdocstheme>=1.18.1 # Apache-2.0
+openstackdocstheme>=2.0.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
-sphinx!=1.6.6,!=1.6.7,>=1.6.2;python_version>='3.4'  # BSD
+sphinx>=2.0.0,!=2.1.0 # BSD
 sphinxcontrib-apidoc>=0.2.0  # BSD
 
 # For autodoc builds
-hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 mock>=2.0.0 # BSD
 betamax>=0.7.0 # Apache-2.0

doc/source/conf.py

@@ -12,8 +12,6 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-from __future__ import unicode_literals
-
 import os
 import sys
 
@@ -47,6 +45,7 @@ extensions = ['sphinx.ext.todo',
 apidoc_module_dir = '../../keystoneauth1'
 apidoc_output_dir = 'api'
 apidoc_excluded_paths = [
+    'hacking',
     'tests/*',
     'tests',
     'test']
@@ -69,15 +68,6 @@ master_doc = 'index'
 project = 'keystoneauth1'
 copyright = 'OpenStack Contributors'
 
-# The version info for the project you're documenting, acts as replacement for
-# |version| and |release|, also used in various other places throughout the
-# built documents.
-version_info = pbr.version.VersionInfo('keystoneauth1')
-# The short X.Y version.
-version = version_info.version_string()
-# The full version, including alpha/beta/rc tags.
-release = version_info.release_string()
-
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
 #language = None
@@ -157,10 +147,6 @@ html_theme = 'openstackdocs'
 # so a file named "default.css" will overwrite the builtin "default.css".
 #html_static_path = ['static']
 
-# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
-# using the given strftime format.
-html_last_updated_fmt = '%Y-%m-%d %H:%M'
-
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
 #html_use_smartypants = True

lower-constraints.txt

@@ -1,6 +1,5 @@
 alabaster==0.7.10
 appdirs==1.4.3
-Babel==2.5.3
 bandit==1.1.0
 betamax==0.7.0
 certifi==2018.1.18
@@ -31,7 +30,7 @@ netaddr==0.7.19
 netifaces==0.10.6
 oauthlib==0.6.2
 openstack-requirements==1.2.0
-openstackdocstheme==1.18.1
+openstackdocstheme==2.0.0
 os-client-config==1.29.0
 os-service-types==1.2.0
 oslo.config==5.2.0
@@ -60,7 +59,7 @@ rfc3986==1.1.0
 six==1.10.0
 smmap2==2.0.3
 snowballstemmer==1.2.1
-Sphinx==1.6.2
+Sphinx==2.0.0
 sphinxcontrib-websupport==1.0.1
 stestr==1.0.0
 stevedore==1.20.0

releasenotes/source/conf.py

@@ -146,11 +146,6 @@ html_static_path = ['_static']
 # directly to the root of the documentation.
 # html_extra_path = []
 
-# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
-# using the given strftime format.
-# html_last_updated_fmt = '%b %d, %Y'
-html_last_updated_fmt = '%Y-%m-%d %H:%M'
-
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
 # html_use_smartypants = True

setup.cfg

@@ -6,6 +6,7 @@ description-file =
 author = OpenStack
 author-email = openstack-discuss@lists.openstack.org
 home-page = https://docs.openstack.org/keystoneauth/latest/
+python-requires = >=3.6
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology
@@ -13,6 +14,8 @@ classifier =
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
     Programming Language :: Python
+    Programming Language :: Python :: Implementation :: CPython
+    Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
@@ -57,17 +60,3 @@ keystoneauth1.plugin =
     v3samlpassword = keystoneauth1.extras._saml2._loading:Saml2Password
     v3applicationcredential = keystoneauth1.loading._plugins.identity.v3:ApplicationCredential
     v3multifactor = keystoneauth1.loading._plugins.identity.v3:MultiFactor
-
-[build_sphinx]
-source-dir = doc/source
-build-dir = doc/build
-all_files = 1
-warning-is-error = 1
-
-[pbr]
-autodoc_tree_index_modules = True
-autodoc_tree_excludes = setup.py
-
-[upload_sphinx]
-upload-dir = doc/build/html
-

setup.py

@@ -13,17 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
 import setuptools
 
-# In python < 2.7.4, a lazy loading of package `pbr` will break
-# setuptools if some other modules registered functions in `atexit`.
-# solution from: http://bugs.python.org/issue15881#msg170215
-try:
-    import multiprocessing  # noqa
-except ImportError:
-    pass
-
 setuptools.setup(
     setup_requires=['pbr>=2.0.0'],
     pbr=True)

test-requirements.txt

@@ -11,7 +11,7 @@ coverage!=4.4,>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 mock>=2.0.0 # BSD
 oslo.config>=5.2.0 # Apache-2.0
-openstackdocstheme>=1.18.1 # Apache-2.0
+openstackdocstheme>=2.0.0 # Apache-2.0
 oslo.utils>=3.33.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 betamax>=0.7.0 # Apache-2.0