SELinux Policy Management Tool does not start on Artful

[Norbert]

Steps to reproduce:
1. Install Ubuntu 17.10
2. Install policycoreutils-gui
3a. Try to launch it from desktop shortcut
3b. Try to launch it from terminal with /usr/bin/sepolicy gui
4a. Application asked for sudo password, but does not start
4b. From terminal it asked for sudo password and printed error message:

/usr/lib/python3/dist-packages/sepolicy/gui.py:29: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk
org.freedesktop.DBus.Python.OSError: OSError: [Errno Failed to read SELinux configuration: %s] (b'', b'Traceback (most recent call last):\n File "/usr/sbin/semanage", line 28, in <module>\n import seobject\n File "/usr/lib/python3/dist-packages/seobject.py", line 1038, in <module>\n class portRecords(semanageRecords):\n File "/usr/lib/python3/dist-packages/seobject.py", line 1040, in portRecords\n valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])\n File "/usr/lib/python3/dist-packages/sepolicy/__init__.py", line 192, in <genexpr>\n return ({\n File "/usr/lib/python3/dist-packages/setools/typeattrquery.py", line 65, in results\n for attr in self.policy.typeattributes():\nAttributeError: \'NoneType\' object has no attribute \'typeattributes\'\n')

Expected results:
* SELinux Policy Management Tool runs normally

Actual results:
* SELinux Policy Management Tool does not run

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: policycoreutils-gui 2.6-3
ProcVersionSignature: Ubuntu 4.12.0-11.12-generic 4.12.5
Uname: Linux 4.12.0-11-generic i686
ApportVersion: 2.20.6-0ubuntu7
Architecture: i386
CurrentDesktop: GNOME
Date: Sun Aug 27 15:58:37 2017
InstallationDate: Installed on 2017-08-26 (0 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha i386 (20170826)
PackageArchitecture: all
SourcePackage: policycoreutils
UpgradeStatus: No upgrade log present (probably fresh install)

[Norbert (nrbrtx)]

Wayland is not the problem here.