Error installing dependencies using poetry

[mazdakb]

After cloning the project, I get the following error when when executing poetry install -E docs:

❯ poetry install -E docs
Installing dependencies from lock file

SolverProblemError

Because mkdocstrings (0.14.0 git rev master) depends on mkdocs-autorefs (>=0.1,<0.2) which doesn't match any versions, mkdocstrings is forbidden.
So, because copier depends on mkdocstrings (0.14.0 git rev master), version solving failed.

at ~/.local/pipx/venvs/poetry/lib/python3.9/site-packages/poetry/puzzle/solver.py:241 in _solve
    237│             packages = result.packages
    238│         except OverrideNeeded as e:
    239│             return self.solve_in_compatibility_mode(e.overrides, use_latest=use_latest)
    240│         except SolveFailure as e:
  → 241│             raise SolverProblemError(e)
    242│ 
    243│         results = dict(
    244│             depth_first_search(
    245│                 PackageNode(self._package, packages), aggregate_package_nodes

Steps to reproduce

1. Clone the project fresh
2. Go into the cloned project root and run poetry install -E docs or poetry install

System Specs

• OS: macOS 11.2.1
• Poetry base Python interpreter: v3.9.1 (pyenv)
• Poetry version 1.1.4 (pipx)

[mazdakb]

I could get around it by fixing the version of mkdocs-autorefs by putting mkdocs-autorefs = "^0.1.0" in pyproject.toml. I think the problem is with dependencies declaration in mkdocstrings where the version for mkdocs-autorefs is set as ^0.1 whereas the version for that library in PyPi is designated as 0.1.0. What I am not sure about is why does fixing the version in copier's dependencies fixes the issue.
One other error I encountered after circumventing this issue was that regex failed to install unless I used a Python version below v3.9.x. This does not conform to python version dependency in pyproject.toml.

[yajo]

This is probably because poetry has a few bugs regarding how it installs git dependencies, namely python-poetry/poetry#3240 and python-poetry/poetry#2921, maybe something else. Some docs dependencies come from git directly because I need some patches from master.

This will be fixed before releasing v6 because all deps must come from pypi at that point. But if you find further problems, I guess it would help more to notify them to poetry directly, and link here.

Thanks for the report!

[yajo]

@pawamoy I have to stop using latest master on mkdocstrings and pytkdocs because of this. See pdm-project/pdm#270 (comment) also.

Could you do some alpha release so I can install from pypi? 😅

[pawamoy]

Hey @yajo, sure, just one PR to merge in pytkdocs and I can release both mkdocstrings and pytkdocs 🙂

[pawamoy]

Everything is now released and resolvable 🙂