Support --target installations with pip freeze (original) (raw)

What's the problem this feature will solve?

List all dependencies with pip freeze which have been installed into an arbitrary directory with pip install --target.

Describe the solution you'd like

pip freeze should have a --target option and take a path to an installation path to work out the installed dependencies in that directory. It should probably also honour the --local flag and skip globally installed packages if specified, just like with virtualenvs, or implicitly disable global site altogether.

I would like to install an application's dependencies into a target directory and then generate a requirements.txt based on the installed packages. At the moment I can only do this if I install the dependencies with --user, inside a virtualenv or by globally installing them.

Alternative Solutions

As far as I know there is no alternative solution to resolve the transitive dependencies and generate a requirements.txt based on a target installation directory.

Additional context