testing rhevm 4.0 develpment version, I've seen: Loading plugin ovirt-engine-setup:distro-rhel (/usr/share/ovirt-engine/setup/bin/../plugins/ovirt-engine-setup/rhevm-setup-plugins/distro-rhel) ***L:ERROR Internal error: cannot import name dialog Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/otopi/__main__.py", line 103, in main installer.execute() File "/usr/lib/python2.7/site-packages/otopi/main.py", line 163, in execute sys.exc_info()[2], File "/usr/lib/python2.7/site-packages/otopi/util.py", line 96, in raiseExceptionInformation exec('raise info[1], None, info[2]') File "/usr/lib/python2.7/site-packages/otopi/main.py", line 157, in execute self.context.loadPlugins() File "/usr/lib/python2.7/site-packages/otopi/context.py", line 538, in loadPlugins self._loadPluginGroups(plugindir, needgroups, loadedgroups) File "/usr/lib/python2.7/site-packages/otopi/context.py", line 127, in _loadPluginGroups self._loadPlugins(path, path, groupname) File "/usr/lib/python2.7/site-packages/otopi/context.py", line 84, in _loadPlugins self._loadPlugins(base, d, groupname) File "/usr/lib/python2.7/site-packages/otopi/context.py", line 84, in _loadPlugins self._loadPlugins(base, d, groupname) File "/usr/lib/python2.7/site-packages/otopi/context.py", line 115, in _loadPlugins os.path.basename(path), File "/usr/lib/python2.7/site-packages/otopi/util.py", line 120, in loadModule mod_desc File "/usr/share/ovirt-engine/setup/bin/../plugins/ovirt-engine-setup/rhevm-setup-plugins/distro-rhel/__init__.py", line 34, in <module> from . import showupgradekb File "/usr/share/ovirt-engine/setup/bin/../plugins/ovirt-engine-setup/rhevm-setup-plugins/distro-rhel/showupgradekb.py", line 30, in <module> from ovirt_engine_setup import dialog PluginLoadException: cannot import name dialog This prevent engine-setup to be executed.