Dependency resolution issue with Poetry

[pawamoy]

Just so you know, backports.entry-points-selectable specifies Python markers for its pytest-mypy dependency that are not being parsed correctly by Poetry, resulting in errors while resolving dependencies for pytest-randomly 3.6.0. See python-poetry/poetry#3862 (comment) and the previous comments. I'll temporarily pin pytest-randomly to 3.5.0 🙂

[adamchainz]

I suggest you also open an issue upstream in backports.entry-points-selectable. That's only a testing requirement so I don't see why poetry would even need to touch it if you didn't specify to install backports.entry-points-selectable[testing]

[pawamoy]

Yes I already did yesterday: jaraco/backports.entry_points_selectable#2 🙂

As for why Poetry reads these, I'm not knowledgeable enough in dependency resolution algorithms or Poetry itself to answer! 😄

[hukkin]

I went ahead and opened a PR for this before realizing this closed issue existed.

I think specifying the dependencies as >= 3 makes more sense even if the Poetry issue is fixed. As far as I know >3 is equivalent to >=3 and !=3. Feels a bit strange to me to arbitrarily exclude Python version 3.0.0 (but not 3.0.1 for instance).

EDIT: Oops I thought I was in backports.entry-points-selectable issue tracker.... 🤦 Will post this there as well.