From: Royce Lv <lvroyce(a)linux.vnet.ibm.com&gt; c5cb1515 used "cleanup_namespaces=True" to clean unused namespace. But on rhel lxml library, this argument is not supported and result in error: File "./src/kimchi/model/utils.py", line 145, in _kimchi_get_metadata_node objectify.deannotate(kimchi, cleanup_namespaces=True) File "lxml.objectify.pyx", line 1728, in lxml.objectify.deannotate (src/lxml/lxml.objectify.c:17914) TypeError: deannotate() got an unexpected keyword argument 'cleanup_namespaces' So use a dedicate function to clean the unused namespace. Signed-off-by: Royce Lv <lvroyce(a)linux.vnet.ibm.com&gt; --- src/kimchi/model/utils.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/kimchi/model/utils.py b/src/kimchi/model/utils.py index dc911a9..9896289 100644 --- a/src/kimchi/model/utils.py +++ b/src/kimchi/model/utils.py @@ -142,7 +142,8 @@ def _kimchi_get_metadata_node(dom, tag): if i >= 0: elem.tag = elem.tag[i+1:] - objectify.deannotate(kimchi, cleanup_namespaces=True) + objectify.deannotate(kimchi) + etree.cleanup_namespaces(kimchi) return kimchi return None