rip
is a library that allows the resolving and installing of Python PyPI packages from Rust into a virtual environment.
It's based on our experience with building rattler and aims to provide the same
experience but for PyPI instead of Conda.
Like rattler, rip
should be fast and easy to use. This library is not a package manager itself but provides the low-level plumbing to be used in one.
To see an example of this take a look at our package manager: pixi 📦
rip
is based on the quite excellent work of posy and we have tried to credit
the authors where possible.
rip
has a very incomplete pip-like binary that can be used to test package installs.
Let's resolve and install the flask
python package. Running cargo run install flask /tmp/flask
we get something like this:
This showcases the downloading and caching of metadata from PyPI. As well as the package resolution using our incremental SAT solver: Resolvo, more on this below. Finally, after resolution it installs the package into a venv. We cache everything locally so that we can reuse the PyPI metadata.
This is a list of current features of rip
, the biggest are listed below:
PEP 517
and PEP 518
standards).More intricacies of the PyPI ecosystem need to be implemented, see our GitHub issues for more details.
We have integrated the stand-alone packaging SAT solver Resolvo, to resolve PyPI packages.
This solver is incremental and adds packaging metadata during resolution of the SAT problem.
This feature can be enabled with the resolvo
feature flag.
We have very simple installation support for the resolved packages.
This should be used for testing purposes exclusively
e.g. cargo run -- install flask /tmp/flask_env
to create a venv and install the flask and it's into it.
After which you can run:
/tmp/flask_env/bin/python
to start python in the venv.import flask #
, this should import the flask package from the venv.
There is no detection of existing packages in the venv yet, although this should be relatively straightforward.We would love to have you contribute! See the CONTRIBUTING.md for more info.
For questions, requests or a casual chat, we are very active on our Discord server.