Comment # 3 on bug 1078825 from Bernhard Wiedemann

adding Tomas as bugowner of python-pyOpenSSL

but I think there might also be an aspect of salt-ssh
because it copies the version from 42.3/python2
and runs it on the 15.0 target host.
Or is the 42.3 version just too old to properly work with openssl-1.1?