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SPECIFICTION
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DUB vs uv

DUB

dub.pm

uv

docs.astral.sh

Side by side

FigureDUBuv
Price from—Free
Free plan—Yes
Free trial——
Open source——
WindowsYesYes
macOSYesYes
LinuxYesYes
Plans published01
Spec score · Package Managers7.1 (#88)8.9 (#4)
Dependency resolutionYesYes
Lockfile supportYesYes
Offline installationYesYes
Package formatsdub.json,dub.sdlsource distributions,wheels,requirements.txt,pylock.toml
PurposeDUB is the official package manager for the D programming language and provides configurable cross-platform builds.uv is an extremely fast Python package and project manager written in Rust.
Supported platformsWindows,macOS,LinuxmacOS,Linux,Windows,CPython,PyPy,Pyodide,GraalPy

Plans

DUB

No plans published.

DUB pricing →

uv

  • uvFree

uv pricing →

In their own words

DUB

DUB has no write-up on Specifiction yet; its figures are above.

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uv

uv is a Python package and project manager for Linux, macOS, and Windows. Written in Rust, it manages dependencies and environments, with lockfiles and workspaces, and can install, list, pin, or uninstall Python versions. It also runs scripts with dependencies and runs or installs command-line tools from Python packages. Its pip-compatible interface is intended to cover work done by tools such as pip, pip-tools, pipx, poetry, pyenv, twine, and virtualenv, though its commands do not exactly match those tools. The documentation describes uv as 10–100x faster than pip. It supports source distributions, wheels, requirements.txt, and pylock.toml, as well as offline installation and private registry authentication. For package selection, its default first-index strategy limits candidates to the first index where a package is found. Credentials are not stored in uv.lock, but uv currently stores them in a plaintext file; native system secret storage is an experimental preview. The free plan is free.

Visit docs.astral.sh