1 files changed, 10 insertions, 0 deletions
diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index 9f43b4071c..4fe247aeb9 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -3454,3 +3454,13 @@ def wait_process(pid, *, exitcode, timeout=None):
     # sanity check: it should not fail in practice
     if pid2 != pid:
         raise AssertionError(f"pid {pid2} != pid {pid}")
+
+
+def use_old_parser():
+    import _testinternalcapi
+    config = _testinternalcapi.get_configs()
+    return (config['config']['_use_peg_parser'] == 0)
+
+
+def skip_if_new_parser(msg):
+    return unittest.skipIf(not use_old_parser(), msg)