In the python2 module builds and base rpm, the python2-libs subrpm contains a /usr/share/systemtap/tapset/libpython*.stp file. This file is moot - not necessary with modern rhel8 systemtap, which includes a better version.  Plus, this version makes reference to the "python" executable, which (due to alternatives etc.) may not even exist on a rhel8 machine, leading to stap errors.

Suggest removing that .stp file from the subrpm whenever this package might be respun in the future  (A workaround is for someone to hand-rm the .stp file.)