ast.Ellipsis check predicated by Python < 3.8.

dace/frontend/python/memlet_parser.py

@@ -1,7 +1,7 @@
-# Copyright 2019-2021 ETH Zurich and the DaCe authors. All rights reserved.
+# Copyright 2019-2023 ETH Zurich and the DaCe authors. All rights reserved.
 import ast
 import copy
-import re
+import sys
 from collections import namedtuple
 from typing import Any, Dict, List, Optional, Tuple, Union
 from dataclasses import dataclass
@@ -114,7 +114,7 @@ def _fill_missing_slices(das, ast_ndslice, array, indices):
             offsets.append(idx)
             idx += 1
             new_idx += 1
-        elif (isinstance(dim, ast.Ellipsis) or dim is Ellipsis
+        elif ((sys.version_info < (3, 8) and isinstance(dim, ast.Ellipsis)) or dim is Ellipsis
               or (isinstance(dim, ast.Constant) and dim.value is Ellipsis)
               or (isinstance(dim, ast.Name) and dim.id is Ellipsis)):
             if has_ellipsis: