Flit vs Spack
Flit
flit.pypa.ioSpack
spack.ioSide by side
| Figure | Flit | Spack |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 0 | 1 |
| Spec score · Python Package Managers | 7.2 (#24) | 8.1 (#8) |
| Integrations | Flit uses pip for installation and supports uploading to PyPI, TestPyPI, or another configured package index. | Spack's services page lists GitLab, CDash, Grafana, Prometheus, and Metabase. |
| Purpose | Flit is a simple way to put Python packages and modules on PyPI, aiming to reduce packaging effort and common mistakes. | Spack is a package manager that makes installing scientific software easy on supercomputers, Linux, macOS, and Windows. |
Plans
In their own words
Spack
Spack is a package manager for installing scientific software on supercomputers, Linux, macOS, and Windows. It is designed for large supercomputing centers that share software across clusters and varied architectures, and is available at free. Users can choose package versions, compiler choices, target architectures, and compile-time options, while controlling direct and transitive dependencies. Spack can build stacks that combine Python or R packages with C, C++, or Fortran libraries. Each distinct package and dependency configuration receives its own prefix, so different builds can coexist without a new installation disrupting an existing one. Software can be installed to a user-selected directory without administrator privileges. Spack primarily builds customized software from source and also supports binary installation through build caches. It supports lockfiles, environment management, and private registries. Package recipes are Python scripts, and the `spack create` command generates starter boilerplate. The project is distributed under either the MIT license or Apache License 2.0, at the user's option.