poetry install fails

[alexxroche]

When I run poetry install I received an error.

I cloned this repo;

git clone https://github.com/rero/flask-wiki.git
cd flask-wiki
python -m venv .venv &&  . .venv/bin/activate 
echo "poetry==1.8.3" >> requirements.txt 
pip install -r requirements.txt
poetry install

and that threw:

Installing dependencies from lock file
 
Package operations: 2 installs, 0 updates, 0 removals
 
  - Installing pytest-pycodestyle (2.3.1)
  - Installing pytest-pydocstyle (2.3.2)
 
  TypeError
 
  Can't instantiate abstract class IsolatedEnv with abstract methods executable, scripts_dir
 
  at .venv/lib64/python3.9/site-packages/poetry/installation/chef.py:131 in _prepare
      127│     ) -> Path:
      128│         from subprocess import CalledProcessError
      129│ 
      130│         with ephemeral_environment(self._env.python) as venv:
    → 131│             env = IsolatedEnv(venv, self._pool)
      132│             builder = ProjectBuilder.from_isolated_env(
      133│                 env, directory, runner=quiet_subprocess_runner
      134│             )
      135│             env.install(builder.build_system_requires)

Cannot install pytest-pydocstyle.


  TypeError

  Can't instantiate abstract class IsolatedEnv with abstract methods executable, scripts_dir

  at .venv/lib64/python3.9/site-packages/poetry/installation/chef.py:131 in _prepare
      127│     ) -> Path:
      128│         from subprocess import CalledProcessError
      129│ 
      130│         with ephemeral_environment(self._env.python) as venv:
    → 131│             env = IsolatedEnv(venv, self._pool)
      132│             builder = ProjectBuilder.from_isolated_env(
      133│                 env, directory, runner=quiet_subprocess_runner
      134│             )
      135│             env.install(builder.build_system_requires)

Cannot install pytest-pycodestyle.