Comment 5 for bug 1451808

Same here - clean install of Kubuntu 16.04.

$ apport-collect 1530523
You need to run 'sudo apt-get install python-apport' for apport-collect to work.

$ sudo apt-get install python-apport
[...]
The following additional packages will be installed:
  python-apt python-httplib2 python-keyring python-launchpadlib python-lazr.restfulclient python-lazr.uri python-oauth
  python-pkg-resources python-problem-report python-secretstorage python-simplejson python-wadllib python-zope.interface
[...]

$ apport-collect 1530523
ERROR: Could not import module, is a package upgrade in progress? Error: No module named PyQt5.QtCore

$ apt list *apport* --installed
[...]
apport/xenial,xenial,now 2.20.1-0ubuntu2 all [installed]
apport-kde/xenial,xenial,now 2.20.1-0ubuntu2 all [installed]
apport-symptoms/xenial,xenial,now 0.20 all [installed]
python-apport/xenial,xenial,now 2.20.1-0ubuntu2 all [installed]
python3-apport/xenial,xenial,now 2.20.1-0ubuntu2 all [installed]