• 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.