should be it

external/duckdb/scripts/python_helpers.py

@@ -0,0 +1,23 @@
+def open_utf8(fpath, flags):
+    import sys
+
+    if sys.version_info[0] < 3:
+        return open(fpath, flags)
+    else:
+        return open(fpath, flags, encoding="utf8")
+
+
+def normalize_path(path):
+    import os
+
+    def normalize(p):
+        return os.path.sep.join(p.split('/'))
+
+    if isinstance(path, list):
+        normed = map(lambda p: normalize(p), path)
+        return list(normed)
+
+    if isinstance(path, str):
+        return normalize(path)
+
+    raise Exception("Can only be called with a str or list argument")