Update xml2xsc.iterpath() to work with current Python versions.

The method `getchildren()` was removed in Python 3.9.

docs/NEWS.rst

@@ -8,6 +8,14 @@ of XIST. For a description of how to update your code to each versions of XIST
 see :ref:`MIGRATION`.
 
 
+Changes in HEAD (released 2023-??-??)
+-------------------------------------
+
+*	Replace a check for the ElementTree method :meth:`getchildren` with a check
+	for :meth:`findall` in :func:`xml2xsc.iterpath` since :meth:`getchildren`
+	has been removed in Python 3.9.
+
+
 Changes in 5.74 (released 2023-03-01)
 -------------------------------------
 

src/ll/xist/scripts/xml2xsc.py

@@ -115,7 +115,7 @@ def iterpath(node):
 	yield [node]
 	if hasattr(node, "text") and node.text:
 		yield [node, node.text]
-	if hasattr(node, "getchildren"):
+	if hasattr(node, "findall"):
 		for child in node:
 			for path in iterpath(child):
 				yield [node] + path