ansible-test - Update Python constraints. (#75959)

* Remove obsolete constraints.
* Simplify constraints.
* Add changelog fragment.

changelogs/fragments/ansible-test-constraints.yaml

@@ -0,0 +1,3 @@
+minor_changes:
+  - ansible-test - Remove obsolete constraints for Python 2.6.
+  - ansible-test - Remove ``idna`` constraint.

test/lib/ansible_test/_data/requirements/constraints.txt

@@ -1,30 +1,16 @@
 # do not add a cryptography or pyopenssl constraint to this file, they require special handling, see get_cryptography_requirements in python_requirements.py
 # do not add a coverage constraint to this file, it is handled internally by ansible-test
 packaging < 21.0 ; python_version < '3.6' # packaging 21.0 requires Python 3.6 or newer
-six < 1.14.0 ; python_version < '2.7' # six 1.14.0 drops support for python 2.6
-jinja2 < 2.11 ; python_version < '2.7' # jinja2 2.11 and later require python 2.7 or later
-urllib3 < 1.24 ; python_version < '2.7' # urllib3 1.24 and later require python 2.7 or later
 pywinrm >= 0.3.0 # message encryption support
-wheel < 0.30.0 ; python_version < '2.7' # wheel 0.30.0 and later require python 2.7 or later
-idna < 2.6, >= 2.5 # linode requires idna < 2.9, >= 2.5, requests requires idna < 2.6, but cryptography will cause the latest version to be installed instead
-paramiko < 2.4.0 ; python_version < '2.7' # paramiko 2.4.0 drops support for python 2.6
-pytest < 3.3.0, >= 3.1.0 ; python_version < '2.7' # pytest 3.3.0 drops support for python 2.6
 pytest < 5.0.0, >= 4.5.0 ; python_version == '2.7' # pytest 5.0.0 and later will no longer support python 2.7
 pytest >= 4.5.0 ; python_version > '2.7' # pytest 4.5.0 added support for --strict-markers
-pytest-forked < 1.0.2 ; python_version < '2.7' # pytest-forked 1.0.2 and later require python 2.7 or later
+pytest-forked >= 1.0.2 # pytest-forked before 1.0.2 does not work with pytest 4.2.0+
-pytest-forked >= 1.0.2 ; python_version >= '2.7' # pytest-forked before 1.0.2 does not work with pytest 4.2.0+ (which requires python 2.7+)
 ntlm-auth >= 1.3.0 # message encryption support using cryptography
-requests < 2.20.0 ; python_version < '2.7' # requests 2.20.0 drops support for python 2.6
 requests-ntlm >= 1.1.0 # message encryption support
 requests-credssp >= 0.1.0 # message encryption support
-virtualenv < 16.0.0 ; python_version < '2.7' # virtualenv 16.0.0 and later require python 2.7 or later
 pyparsing < 3.0.0 ; python_version < '3.5' # pyparsing 3 and later require python 3.5 or later
-pyyaml < 5.1 ; python_version < '2.7' # pyyaml 5.1 and later require python 2.7 or later
-pycparser < 2.19 ; python_version < '2.7' # pycparser 2.19 and later require python 2.7 or later
 mock >= 2.0.0 # needed for features backported from Python 3.6 unittest.mock (assert_called, assert_called_once...)
 pytest-mock >= 1.4.0 # needed for mock_use_standalone_module pytest option
-xmltodict < 0.12.0 ; python_version < '2.7' # xmltodict 0.12.0 and later require python 2.7 or later
-setuptools < 37 ; python_version == '2.6' # setuptools 37 and later require python 2.7 or later
 setuptools < 45 ; python_version == '2.7' # setuptools 45 and later require python 3.5 or later
 pyspnego >= 0.1.6 ; python_version >= '3.10' # bug in older releases breaks on Python 3.10
 MarkupSafe < 2.0.0 ; python_version < '3.6' # MarkupSafe >= 2.0.0. requires Python >= 3.6