>>> pprint([x.display_name for x in lp.load('ubuntu/yakkety').main_archive.getPublishedSources(source_name='sync-monitor', distro_series=lp.load('ubuntu/yakkety'), status='Published')[0].getPublishedBinaries() if x.architecture_specific and 's390x' in x.display_name])
[u'qtdeclarative5-ubuntu-syncmonitor0.1 0.2+16.10.20160804-0ubuntu1 in yakkety s390x',
u'qtdeclarative5-ubuntu-syncmonitor0.1-dbgsym 0.2+16.10.20160804-0ubuntu1 in yakkety s390x',
u'sync-monitor 0.2+16.10.20160804-0ubuntu1 in yakkety s390x',
u'sync-monitor-dbgsym 0.2+16.10.20160804-0ubuntu1 in yakkety s390x',
u'sync-monitor-helper 0.2+16.10.20160804-0ubuntu1 in yakkety s390x',
u'sync-monitor-helper-dbgsym 0.2+16.10.20160804-0ubuntu1 in yakkety s390x']