for bash/fish it automatically prefix with a (your-venv-name) so it's obvious you're under some venv, not sure about csh but I would assume it will do something

for bash/fish it automatically prefix with a (your-venv-name) so it's obvious you're under some venv, not sure about csh but I would assume it will do something similar. looks like venv supports bash/csh/fish only by default however.