xml/metadata: implement XMLParser.doctype()

Avoid deprecation warnings again, like in commit
63035acd702ab0cdaac31e33676b5a20a91eae47.

1 files changed, 13 insertions, 2 deletions

diff --git a/pym/portage/xml/metadata.py b/pym/portage/xml/metadata.py
index ef335e29f..9e1886927 100644
--- a/pym/portage/xml/metadata.py
+++ b/pym/portage/xml/metadata.py
@@ -36,10 +36,19 @@ except ImportError:
 	import xml.etree.ElementTree as etree
 
 import re
+import xml.etree.ElementTree
 import portage
 from portage import os
 from portage.util import unique_everseen
 
+class _MetadataTreeBuilder(xml.etree.ElementTree.TreeBuilder):
+	"""
+	Implements doctype() as required to avoid deprecation warnings with
+	Python >=2.7.
+	"""
+	def doctype(self, name, pubid, system):
+		pass
+
 class _Maintainer(object):
 	"""An object for representing one maintainer.
 
@@ -173,7 +182,8 @@ class MetaDataXML(object):
 		self._xml_tree = None
 
 		try:
-			self._xml_tree = etree.parse(metadata_xml_path)
+			self._xml_tree = etree.parse(metadata_xml_path,
+				parser=etree.XMLParser(target=_MetadataTreeBuilder()))
 		except ImportError:
 			pass
 
@@ -208,7 +218,8 @@ class MetaDataXML(object):
 
 		if self._herdstree is None:
 			try:
-				self._herdstree = etree.parse(self._herds_path)
+				self._herdstree = etree.parse(self._herds_path,
+					parser=etree.XMLParser(target=_MetadataTreeBuilder()))
 			except (ImportError, IOError, SyntaxError):
 				return None