How to list dependencies?

[mtelka]

I need to list (print) dependencies for a project. Let say I do have a project (doff_cover in this case) with following in its pyproject.toml:

[tool.poetry.dev-dependencies]
pytest-cov = "^4.1.0"
pytest-datadir = "^1.5.0"
pytest-mock = "^3.12.0"
pycodestyle = ">=2.9.1"
flake8 = "^5.0.4"
pyflakes = "^2.5.0"
pylint = "^2.17.7"
pylint-pytest = "^1.1.3"
pydocstyle = "^6.1.1"
black = "^23.10.1"
isort = "^5.11.5"
doc8 = "1.1.1"

Is there a way how to list these dependencies? For example to get pip freeze-compatible output?

Yes, I can install those dependencies using poetry install, but I do not want to install them, I just need to print them.

Thank you.

PS: There is nice documentation about poetry dependencies, but I failed to find there the information I'm looking for.

[dimbleby]

poetry list lists the available commands.

[squarism]

poetry run pip list runs pip list inside of the project context (ie: the lock file). This is great because it's project isolated, ideally content computed off of hashes and repeatable all things being equal.

I have recently learned this does not consider on-disk state so you have to be careful. Probably run poetry install before you do your print out.

[gmarkingembed]

poetry show lists all packages in the environment. You can also pass a package into the command poetry show <package> to get a detailed summary including its dependencies and required by packages in the env.

[squarism]

poetry show doesn't show the versions as a list. You can see the versions with poetry show --tree but then it's n oisy because of transitive dependencies. You can use poetry show --top-level but this does not show versions either and cannot be used with --tree. It's for this reason and getting people used to poetry coming from pip that I just demonstrate/share poetry run pip list.

Maybe there are other ways too.

[mtelka]

The best solution that fits my needs is https://pypi.org/project/pyproject-installer/