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.
It should be fast and easy to use. Like Rattler, this library is not a package manager itself but provides the low-level plumbing to be used in one.
RIP is based on the quite excellent work of posy and we have tried to credit
the authors where possible.
Let's resolve the flask python package.
We've added a small binary in rip_bin to showcase this:
This showcases the downloading and caching of metadata from PyPI. As well as the package resolution using our solver, more on this below. We cache everything in a local directory so that we can re-use the metadata and don't have to download it again.
We have added very simple installation support for the resolved packages.
For testing purposes exclusively, we have added a --install-into flag to the rip_bin binary.
Use the --install-into <some_path> to create a venv and install the packages into it.
There is no detection of existing packages yet.
This is a list of current and planned features of RIP, the biggest are listed below:
- Downloading and aggressive caching of PyPI metadata.
- Resolving of PyPI packages using Resolvo.
- Installation of wheel files (see: #6 for last open issues)
- Support sdist files
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 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. You can join our discord server via this link.