using `poetry add 'package[all]'` doesn't install extra dependencies (happens only with 'all')

[aberges-grd]

• Poetry version: 1.4.0
• Python version: 3.8.10
• OS version and name: Ubuntu 22.04
• pyproject.toml:

• I am on the latest stable Poetry version, installed using a recommended method.
• I have searched the issues of this repo and believe that this is not a duplicate.
• I have consulted the FAQ and blog for any relevant entries or release notes.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option) and have included the output below.

Issue

The issue is fairly simple. On a new poetry project, I used (I will report with the package used in case it helps):

poetry add 'polars[all]'

poetry installs polars but no extras. Meanwhile, on an isolated environment, using pip install 'polars[all]' does install every extra dependency listed by that package.

However, poetry works well if I specify which extras to install, e.g.:

poetry add 'polars[numpy,pandas,pyarrow,connectorx]'

works.

[dimbleby]

previously rejected, for better or worse, at #3369

[rtest2344]

Adding here in addition to #8496:

Documentation states that this should work here.

[maxsegl]

So i tried as suggested in the documentation to install the optional groups optional and meshing (see the pyproject of the package)

poetry add "colour-science[optional,meshing]"

This added correctly to my own pyproject.toml:

[tool.poetry]
name = "color_test"
version = "0.1.0"
description = ""
readme = "README.md"
package-mode = false

[tool.poetry.dependencies]
python = ">=3.12,<3.13"
colour-science = {extras = ["optional","meshing"], version = "^0.4.4"}

[build-system]
requires = ["poetry-core"]
build-backend = "poetry.core.masonry.api"

But in the installation the extras were ignored. Also running

poetry install --all-extras

changed nothing. Only direct installation of the dependencies made things work for me, which is not the idea of using extras, I guess.

Am I missing something?

[clintonroy]

Poetry groups are (at the moment) a poetry specific concept that does not propagate to the published wheel. They're for things like development dependencies, cicd pipeline stuff, documentation tools etc.

Extras are an upstream python wheel thing, that get published to the wheel metadata.

color-science has groups, it does not have extras.

potentially here, poetry could/should warn that the requested extras don't exist.

[dimbleby]

fixed by #10106

[github-actions]

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