update to 0.16.5

python-ruamel-yaml-pytest27.patch

@@ -1,19 +1,18 @@
-diff -up ruamel-yaml-171c3653fc01/_test/test_anchor.py.pytest27 ruamel-yaml-171c3653fc01/_test/test_anchor.py
---- ruamel-yaml-171c3653fc01/_test/test_anchor.py.pytest27	2016-09-21 02:09:18.000000000 -0600
-+++ ruamel-yaml-171c3653fc01/_test/test_anchor.py	2017-01-31 15:25:09.245847125 -0700
-@@ -5,6 +5,7 @@ testing of anchors and the aliases refer
+diff -u ruamel-yaml-ff02b83b8f91/_test/test_anchor.py.pytest27 ruamel-yaml-ff02b83b8f91/_test/test_anchor.py
+--- ruamel-yaml-ff02b83b8f91/_test/test_anchor.py.pytest27	2019-08-27 10:59:01.756747586 +0100
++++ ruamel-yaml-ff02b83b8f91/_test/test_anchor.py	2019-08-27 11:00:15.929713043 +0100
+@@ -7,6 +7,7 @@
  """
- 
+
  import pytest
 +from distutils.version import LooseVersion
  from textwrap import dedent
  import platform
- 
-@@ -231,6 +232,7 @@ class TestAnchorsAliases:
-         """)
- 
+
+@@ -248,6 +249,7 @@
+         )
+
      # this is an error in PyYAML
 +    @pytest.mark.skipif(LooseVersion(pytest.__version__) < LooseVersion("2.8"), reason="Need pytest 2.7")
      def test_reused_anchor(self):
-         yaml = '''
-         - &a
+         from ruamel.yaml.error import ReusedAnchorWarning