Please put into F29 equivalent of https://docs.fedoraproject.org/en-US/fedora/f28/release-notes/developers/Development_Python/

The virtualenv command now comes from the python3-virtualenv package (previously it was in python2-virtualenv). if you cannot longer find the command, run sudo dnf install virtualenv or sudo dnf install python3-virtualenv. Note that when tou run virtualenv without the --python/-p option, it will now create Python 3 based virtual environments. Use virtualenv -p python2.7 to get the previously default behavior.

(Feel free to reword this as you see fit.)