deptry reports dependencies as unused, although I need them

Question

In my python project, I use poetry version 1.7.0 and have a pyproject.toml containing

[tool.poetry.dependencies]
python = "^3.11"
dogpile-cache = {extras = ["redis"], version = "^1.2.2"}
redis = "^4.5.5"
...

[tool.poetry.group.dev.dependencies]
deptry = "^0.12.0"
....

The rest of the content should be irrelevant, but note there is no [tool.poetry.extras] section.

I install dependencies via poetry install, respectively poetry install --withou dev for production.

When I execute deptry ., it reports redis dependency as unused. There is no direct import of redis in my project code, but it is still required by dogpile-cache. If I remove the explicit dependency, my application stops working.

I did read up on poetry extras, but to my understanding they should not be used here, because they should describe optional extended functionality of my project and not extras of dependencies I want to use.

How to solve the situation? Do I need to change some deptry config to have the tool stop reporting those repositories? Or do I need to adjust my pyproject.toml and the way I install dependencies with poetry?

Answer 1

You can add configuration to your pyproject.toml to ignore the error for that specific package, see here.

In your case, add the following to your pyproject.toml:

[tool.deptry.per_rule_ignores]
DEP002 = ["redis"]