[Feature Request] Subshell Support

[creallfluharty]

Tools such as pew, pipenv, and poetry all seem to support the creation of a subshell when entering a virtualenv. Although pyenv provides all the functionality that can be achieved in a subshell within the shell that it is launched, there is a certain degree of isolation as well as convenience associated with a subshell that the current setup

$ pyenv shell venv_name
(venv_name) $ python somescript.py
(venv_name) $ pyenv shell --unset
$ █

lacks.

Is there any possibility that pyenv could provide this same sort of functionality?