Spack vs virtualenv
| Spack | virtualenv | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | Linux, macOS, Windows |
| Free plan | Yes | Yes |
| Lockfile support | Yes | — |
| Environment management | Yes | Yes |
| Private registry | Yes | — |
| Supported platforms | cross-platform | cross-platform |
Both are listed in Best Python Package Managers. On Specifiction, Spack scores higher on our published basis.