Remove type annotations for py2 compatibility add tox-sanity-py27

As seen at [1] the get-hash module [2] fails on centos7. Removing the
annotations should fix this.

Adds the tox-sanity-py27 job for sanity checking that we don't break
py27 support moving forward (until we can kill train).

[1]
https://ab16cb0adf1bbde868e8-d97d31900addfa62359a210d03244371.ssl.cf2.rackcdn.com/807269/1/gate/tripleo-ci-centos-7-content-provider/d1be2fe/job-output.txt
[2] https://review.opendev.org/c/openstack/tripleo-quickstart/+/791486

Change-Id: I289fc02a05fd0e550c5cc9ffeb14da0684d15ee9

plugins/module_utils/tripleo_repos/get_hash/tripleo_hash_info.py

@@ -22,13 +22,12 @@ from .constants import CONFIG_PATH, CONFIG_KEYS, DEFAULT_CONFIG
 from .exceptions import (
     TripleOHashInvalidConfig, TripleOHashInvalidDLRNResponse
 )
-from typing import Any, Tuple
 # portable http_get that uses either ansible recommended way or python native
 # urllib.
 try:
     from ansible.module_utils.urls import open_url
 
-    def http_get(url: str) -> Tuple[str, int]:
+    def http_get(url):
         try:
             response = open_url(url, method='GET')
             return (response.read(), response.status)
@@ -37,7 +36,7 @@ try:
 except ImportError:
     from urllib.request import urlopen
 
-    def http_get(url: str) -> Tuple[str, int]:
+    def http_get(url):
         # https://stackoverflow.com/questions/35122232/urllib-request-urlopen-return-bytes-but-i-cannot-decode-it
         try:
             response = urlopen(url)
@@ -62,7 +61,7 @@ class TripleOHashInfo:
     """
 
     @classmethod
-    def load_yaml(cls, filename: str) -> Any:
+    def load_yaml(cls, filename):
         import yaml
         return yaml.safe_load(filename)
 
@@ -270,7 +269,7 @@ class TripleOHashInfo:
             "delorean commit.yaml results %s", parsed_yaml['commits'][0])
         return full, commit, distro, extended
 
-    def __repr__(self) -> str:
+    def __repr__(self):
         """Returns a string representation of the object"""
         attrs = vars(self)
         return ',\n'.join('%s: %s' % item for item in attrs.items())

zuul.d/layout.yaml

@@ -1,3 +1,9 @@
+- job:
+    name: tox-sanity-py27
+    description:  Run ansible-test sanity tests on a collection
+    parent: openstack-tox-py27
+    vars:
+      tox_envlist: sanity
 - job:
     name: tox-sanity-py36
     description:  Run ansible-test sanity tests on a collection
@@ -30,6 +36,7 @@
               - openstack-tox-py39
         - tripleo-build-containers-ubi-8:
             dependencies: *deps_unit_lint_cprovider
+        - tox-sanity-py27
         - tox-sanity-py36
         - tox-sanity-py39
     gate: