You mean the tool that has a 2/3 flag option, but no way to choose precisely which from 3.4, 3.5 or 3.6 you want ?
https://docs.pipenv.org/basics.html#specifying-versions-of-p...
pipenv --python python34Is that recent ?
Probably 7.0.0 or 3.2.9, where current version is 8.2.6: https://github.com/kennethreitz/pipenv/blob/master/HISTORY.t...
Also, I guess --python 3.4 would be the preferred way to do it, seems to work with either versions or executables.