This is not an urgent thing, since I just downloaded virt-manager on a whim to try it out, but...
I downloaded and installed virt-manager.tcz on Core 15.0 / x86_64 and when I try to run it, I get the following error output:
tc@dolly:~$ virt-manager
Traceback (most recent call last):
File "/usr/local/share/virt-manager/virt-manager", line 19, in <module>
from virtinst import BuildConfig
File "/tmp/tcloop/virt-manager/usr/local/share/virt-manager/virtinst/__init__.py", line 49, in <module>
from virtinst.domain import * # pylint: disable=wildcard-import
File "/tmp/tcloop/virt-manager/usr/local/share/virt-manager/virtinst/domain/__init__.py", line 5, in <module>
from .blkiotune import DomainBlkiotune
File "/tmp/tcloop/virt-manager/usr/local/share/virt-manager/virtinst/domain/blkiotune.py", line 8, in <module>
from ..xmlbuilder import XMLBuilder, XMLChildProperty, XMLProperty
File "/tmp/tcloop/virt-manager/usr/local/share/virt-manager/virtinst/xmlbuilder.py", line 16, in <module>
from .xmlapi import XMLAPI
File "/tmp/tcloop/virt-manager/usr/local/share/virt-manager/virtinst/xmlapi.py", line 7, in <module>
import libxml2
ModuleNotFoundError: No module named 'libxml2'
Both libxml2.tcz and libxml2-python.tcz are loaded.
Looking at /tmp/tcloop/virt-manager/usr/local/share/virt-manager/virtinst/xmlapi.py line #7, it looks like libxml2-python should do the job, but apparently not (though I'm -still- not exactly a python guy).