Disable test with libedit

Author: gaogaotiantian

Lib/test/test_pdb.py

@@ -3242,7 +3242,9 @@ class PdbTestReadline(unittest.TestCase):
     def setUpClass():
         # Ensure that the readline module is loaded
         # If this fails, the test is skipped because SkipTest will be raised
-        import_module('readline')
+        readline = import_module('readline')
+        if readline.__doc__ and "libedit" in readline.__doc__:
+            raise unittest.SkipTest("libedit readline is not supported for pdb")
 
     def test_basic_completion(self):
         script = textwrap.dedent("""