Struct ProjectVenvInstall 

pub struct ProjectVenvInstall {
    pub venv: PathBuf,
    pub project: PathBuf,
}

This binary, running from inside a project’s own virtual environment.

The distinction that matters is not “was this installed by pip” — a machine-wide pip install is a perfectly good way to get the tool. It is “does this copy live inside one project’s environment”, because such a copy dies with the environment, and until it does it is a package that project’s requirements.txt has to account for before the environment can ever be pruned.

pyvenv.cfg one directory above the script is what separates the two: every virtual environment has one and no system install does.

Fields

venv: PathBuf

The environment root — the directory holding pyvenv.cfg.

project: PathBuf

The directory the environment sits in, which is the project in every layout anyone actually uses.