Support for Python 3 has been added to systemtap [1]. System wide change for Fedora 23 was accepted by FESCo which implies that all packages on Live CD and other install media must run on Python 3 and not Python 2 [2]. Please update and change the systemtap package so it uses Python 3. In case you don't have time/resources to do this in time before F23 Alpha freeze [3], I can do it myself, please let me know if that's acceptable. Also related: bz1229835 [1] https://sourceware.org/ml/systemtap/2015-q1/msg00181.html [2] https://fedoraproject.org/wiki/Changes/Python_3_as_Default [3] https://fedoraproject.org/wiki/Releases/23/Schedule
Fixed in upstream, coming to a weekly rawhide respin shortly commit 0a74254591f07c403e1362bfc041e43ec20589da Author: Frank Ch. Eigler <fche> Date: Fri Jul 10 10:52:47 2015 -0400 BZ1241971: add --with-python3 to configury for /usr/bin/dtrace
Thank you.