Issue #22773: fix failing test with old readline versions due to issue #19884.
diff --git a/Lib/test/test_readline.py b/Lib/test/test_readline.py
index aabbf54..e009952 100644
--- a/Lib/test/test_readline.py
+++ b/Lib/test/test_readline.py
@@ -43,6 +43,10 @@
 
 
 class TestReadline(unittest.TestCase):
+
+    @unittest.skipIf(readline._READLINE_VERSION < 0x0600
+                     and "libedit" not in readline.__doc__,
+                     "not supported in this library version")
     def test_init(self):
         # Issue #19884: Ensure that the ANSI sequence "\033[1034h" is not
         # written into stdout when the readline module is imported and stdout