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Support 3.11 / PEP 654 syntax (#3016)
[etc/vim.git] / src / blib2to3 / pgen2 / parse.py
index 4a23d538b493659a448d941bcc3801fc2abd5b82..a9dc11f39ce15deedbcb57cbef8d5774c238d4ea 100644 (file)
@@ -54,7 +54,7 @@ def stack_copy(
     stack: List[Tuple[DFAS, int, RawNode]]
 ) -> List[Tuple[DFAS, int, RawNode]]:
     """Nodeless stack copy."""
     stack: List[Tuple[DFAS, int, RawNode]]
 ) -> List[Tuple[DFAS, int, RawNode]]:
     """Nodeless stack copy."""
-    return [(copy.deepcopy(dfa), label, DUMMY_NODE) for dfa, label, _ in stack]
+    return [(dfa, label, DUMMY_NODE) for dfa, label, _ in stack]
 
 
 class Recorder:
 
 
 class Recorder: