BUG: add compat check pandas-dev#32766

Author: fangchenli

pandas/core/computation/expr.py

@@ -10,6 +10,8 @@
 
 import numpy as np
 
+from pandas.compat import PY39
+
 import pandas.core.common as com
 from pandas.core.computation.ops import (
     _LOCAL_TAG,
@@ -196,6 +198,9 @@ def _filter_nodes(superclass, all_nodes=_all_nodes):
 _keyword_nodes = _filter_nodes(ast.keyword)
 _alias_nodes = _filter_nodes(ast.alias)
 
+if not PY39:
+    _slice_nodes = _filter_nodes(ast.slice)
+
 
 # nodes that we don't support directly but are needed for parsing
 _hacked_nodes = frozenset(["Assign", "Module", "Expr"])