on opensue formum s they describe a patch for fedora which solve ny problem see https://forums.opensuse.org/showthread.php/524800-Python-2-7-application-will-not-run-after-recent-distribution-upgrade. This patch seems not yet present in tumbleweed 20170516. file impacted is /usr/lib/python2.7/site-packages/pysollib/mfxutil.py Regards Philippe