Ignore new warnings traced on tox invocation.
See pypa/packaging#170.
@@ -65,6 +65,9 @@ test_script:
subst T: $env:TEMP
$env:TEMP = "T:\"
$env:TMP = "T:\"
+ # Workaround warnings traced in packaging.requirements with pyparsing 2.4.1.
+ # See pypa/packaging#170 and tox-dev/tox#1375.
+ $env:PYTHONWARNINGS = "ignore:warn_ungrouped_named_tokens_in_collection"
tox -e py -- -m unit
if ($LastExitCode -eq 0 -and $env:RUN_INTEGRATION_TESTS -eq "True") {
tox -e py -- --use-venv -m integration -n2 --durations=20
