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

same here

sudo apt install python-apport
[sudo] password for buzzmandtcompaq:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  linux-headers-4.4.0-9136 linux-headers-4.4.0-9136-generic linux-headers-4.8.0-11 linux-headers-4.8.0-11-generic linux-image-4.4.0-38-generic linux-image-4.4.0-9136-generic
  linux-image-4.8.0-11-generic linux-image-extra-4.4.0-38-generic linux-image-extra-4.4.0-9136-generic linux-image-extra-4.8.0-11-generic
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  python-apt python-cffi-backend python-cryptography python-enum34 python-httplib2 python-idna python-ipaddress python-keyring python-keyrings.alt python-launchpadlib
  python-lazr.restfulclient python-lazr.uri python-oauth python-pkg-resources python-problem-report python-pyasn1 python-secretstorage python-setuptools python-simplejson python-six
  python-wadllib python-zope.interface
Suggested packages:
  python-apt-dbg python-apt-doc python-cryptography-doc python-cryptography-vectors python-enum34-doc gnome-keyring gir1.2-gnomekeyring-1.0 python-fs python-gdata python-kde4 python-keyczar
  python-testresources doc-base python-secretstorage-doc python-setuptools-doc
The following NEW packages will be installed:
  python-apport python-apt python-cffi-backend python-cryptography python-enum34 python-httplib2 python-idna python-ipaddress python-keyring python-keyrings.alt python-launchpadlib
  python-lazr.restfulclient python-lazr.uri python-oauth python-pkg-resources python-problem-report python-pyasn1 python-secretstorage python-setuptools python-simplejson python-six
  python-wadllib python-zope.interface
0 upgraded, 23 newly installed, 0 to remove and 0 not upgraded.
Need to get 1,302 kB of archives.
After this operation, 7,095 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-apt amd64 1.1.0~beta5 [142 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-problem-report all 2.20.3-0ubuntu7 [9,638 B]
Get:3 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-httplib2 all 0.9.1+dfsg-1 [34.2 kB]
Get:4 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-keyring all 9.1-1 [28.9 kB]
Get:5 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-pkg-resources all 25.2.0-1ubuntu1 [109 kB]
Get:6 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-lazr.uri all 1.0.3-2build1 [13.6 kB]
Get:7 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-simplejson amd64 3.8.2-2 [60.1 kB]
Get:8 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-wadllib all 1.3.2-3 [28.2 kB]
Get:9 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-zope.interface amd64 4.2.0-2 [80.6 kB]
Get:10 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-oauth all 1.0.1-5 [12.9 kB]
Get:11 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 python-lazr.restfulclient all 0.13.4-6 [50.8 kB]
Get:12 http://us.archive.ubuntu.com/ubuntu yakkety/main amd64 pytho...

Status changed to 'Confirmed' because the bug affects multiple users.

Well... any updates on this one ?