Suppress deprecation warnings in flake8 and packaging.tags. Ref pypa/packaging#433.
@@ -5,3 +5,7 @@ doctest_optionflags=ALLOW_UNICODE ELLIPSIS
# workaround for warning pytest-dev/pytest#6178
junit_family=xunit2
filterwarnings=
+ # Suppress deprecation warning in flake8
+ ignore:SelectableGroups dict interface is deprecated::flake8
+ # Suppress deprecation warning in pypa/packaging#433
+ ignore:The distutils package is deprecated::packaging.tags
