Is there any way to define dependencies to be installed without installing package itself?

[alvarobartt]

I was wondering whether there's any way to actually define development dependencies to be used just in a development environment but not attached to the project itself, meaning that it won't install those on top of the project dependencies installation, but just to define a list of dependencies to be installed standalone.

e.g. poetry has poetry install --dev-only to install just the development dependencies (more information at python-poetry/poetry#2572), while hatch AFAIK just allows installing of those as extra dependencies on top of the Python package as pip install ".[dev]", which is some scenarios is counterproductive as someone may just want to install e.g. flake8 that doesn't require to have all the package dependencies installed.

[ischaojie]

hatch currently doesn't support installing the package from cli. In other words, hatch supports a more advanced topic: environment. you can add these development dependencies into the environment config, by following the docs: https://hatch.pypa.io/latest/environment/ and https://hatch.pypa.io/latest/config/environment/overview/

[tool.hatch.envs.default]
dependencies = [
  "some"
]