[2.7] bpo-31411: Prevent raising a SystemError in case warnings.oncer…#3493

serhiy-storchaka merged 1 commit into

python:2.7python/cpython:2.7from

serhiy-storchaka:backport-252033d-2.7serhiy-storchaka/cpython:backport-252033d-2.7Copy head branch name to clipboard