Passa: Toolset for Pipfile projects

Passa is a toolset for performing tasks in a Pipfile project. It contains several components:

  • A resolver designed for performing dependency resolution using a stateful look-forward algorithm to resolve dependencies (backed by ResolveLib).
  • Interface to interact with individual requirement specifications inside Pipfile and Pipfile.lock (backed by RequirementsLib).
  • A command line interface to invoke the above operations.


Install Passa with pip:

pip install passa

Use Passa to generate Pipfile.lock from the Pipfile in the current directory:

python -m passa lock

Add packages to the project:

python -m passa add pytz requests tqdm

Remove packages from the project:

python -m passa remove pytz

Generate requirements.txt for the current project:

python -m passa freeze --target requirements.txt