修改为东南天坐标系

backend_service/venv/lib/python3.13/site-packages/nltk/stem/util.py

@@ -0,0 +1,25 @@
+# Natural Language Toolkit: Stemmer Utilities
+#
+# Copyright (C) 2001-2025 NLTK Project
+# Author: Helder <he7d3r@gmail.com>
+# URL: <https://www.nltk.org/>
+# For license information, see LICENSE.TXT
+
+
+def suffix_replace(original, old, new):
+    """
+    Replaces the old suffix of the original string by a new suffix
+    """
+    return original[: -len(old)] + new
+
+
+def prefix_replace(original, old, new):
+    """
+    Replaces the old prefix of the original string by a new suffix
+
+    :param original: string
+    :param old: string
+    :param new: string
+    :return: string
+    """
+    return new + original[len(old) :]