Cleanup py27 support

Removes all mentions of py27.

Change-Id: I2a1767c3df332cccf13303ce734c40d04dfd6ec9
Co-Authored-By: jacky06 <zhang.min@99cloud.net>

lower-constraints.txt

@@ -2,7 +2,6 @@ alabaster==0.7.10
 ansible==2.5.0
 appdirs==1.4.3
 asn1crypto==0.24.0
-Babel==2.5.3
 bandit==1.1.0
 bashate==0.5.1
 beautifulsoup4==4.6.0
@@ -41,7 +40,7 @@ linecache2==1.0.0
 MarkupSafe==1.0
 monotonic==1.4
 mox3==0.25.0
-mypy==0.6
+mypy==0.600
 msgpack==0.5.6
 munch==2.2.0
 netaddr==0.7.18
@@ -95,7 +94,7 @@ stestr==2.0.0
 testscenarios==0.4
 testtools==2.2.0
 traceback2==1.4.0
-typing==3.6
+typing==3.6.6
 unittest2==1.1.0
 urllib3==1.22
 warlock==1.3.0

requirements.txt

@@ -1,10 +1,6 @@
-# The order of packages is significant, because pip processes them in the order
-# of appearance. Changing the order has an impact on the overall integration
-# process, which may cause wedges in the gate later.
-
-Babel>=2.5.3 # BSD
 cliff>=2.11.0 # Apache-2.0
 cliff-tablib>=2.0 # Apache-2.0
+docker>=2.4.2 # Apache-2.0
 jsonpickle>=0.9 # BSD
 oslo.i18n>=3.20.0 # Apache-2.0
 paramiko>=2.6.0 # LGPL

setup.cfg

@@ -6,7 +6,8 @@ description-file =
 author = OpenStack
 author-email = openstack-discuss@lists.openstack.org
 home-page = https://docs.openstack.org/kolla-cli/latest/
-
+python-requires = >=3.6
+license = Apache License, Version 2.0
 classifier =
     Environment :: OpenStack
     Intended Audience :: Developers
@@ -14,6 +15,9 @@ classifier =
     Intended Audience :: System Administrators
     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

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)

tox.ini

@@ -14,8 +14,8 @@ whitelist_externals =
   mkdir
   mypy
   rm
-install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master} {opts} {packages}
+deps = -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
-deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
           OS_STDOUT_CAPTURE OS_STDERR_CAPTURE OS_LOG_CAPTURE OS_TEST_TIMEOUT