Dependency resolution loop with Sphinx and Zappa

[ryancausey]

• [x] I am on the latest Poetry version.
• [x] I have searched the issues of this repo and believe that this is not a duplicate.
• [x] If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

• OS version and name: Ubuntu 18.04.4 LTS (Bionic Beaver)
• Poetry version: Poetry version 1.0.5
• Link of a Gist with the contents of your pyproject.toml file: https://gist.github.com/ryancausey/219419d2316514c7f1c60f3e60296869

Issue

The dependency resolution seems to get stuck in a loop due to the derived botocore dependency requiring docutils<0.16. This dependency comes from Zappa requiring boto3 which requires botocore. I'm not sure why poetry is selecting docutils==0.16 and then getting stuck in a loop trying to resolve boto3 and botocore.

The workaround is to add boto3 directly as a dependency, I.E. poetry add boto3. Then poetry correctly selects docutils<0.16.

The pyproject.toml GIST linked above is the minimum required to reproduce this issue.

Here's a gist containing some of the verbose output of the loop: https://gist.github.com/ryancausey/25c01d8a06fcdc7aef40424168dfdbb5

[finswimmer]

Hello,

this seems to solved in the meantime.

fin swimmer

[github-actions[bot]]

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