poetry 2 install command can not find pyproject.toml with --only and --directory parameters

[konstantin-mueller]

Description

I have a pyproject.toml with package-mode = false and I'm copying it into a docker image. I installed the dependencies like this in previous versions of poetry:

poetry install --only main --no-cache -C /tmp

/tmp contains the pyproject.toml and poetry.lock files.

The command fails with poetry 2. Error message:

Poetry could not find a pyproject.toml file in / or its parents

The current directory during docker build is /. Poetry should change the directory to /tmp because of the -C /tmp parameter.

If I change the order of the parameters like this:

poetry install -C /tmp --only main --no-cache

then poetry successfully installs the dependencies.

Workarounds

Specify -C parameter before the --only parameter

Poetry Installation Method

pip

Operating System

Alpine 3.21

Poetry Version

2.0.0

Poetry Configuration

cache-dir = "/home/user/.cache/pypoetry"
installer.max-workers = null
installer.no-binary = null
installer.only-binary = null
installer.parallel = true
installer.re-resolve = true
keyring.enabled = true
requests.max-retries = 0
solver.lazy-wheel = true
system-git-client = false
virtualenvs.create = true
virtualenvs.in-project = null
virtualenvs.options.always-copy = false
virtualenvs.options.no-pip = false
virtualenvs.options.system-site-packages = false
virtualenvs.path = "{cache-dir}/virtualenvs"  # /home/user/.cache/pypoetry/virtualenvs
virtualenvs.prompt = "{project_name}-py{python_version}"
virtualenvs.use-poetry-python = false

Python Sysconfig

No response

Example pyproject.toml

No response

Poetry Runtime Logs

Stack trace:

  12  /opt/doc_venv/lib/python3.13/site-packages/cleo/application.py:327 in run
       325│ 
       326│             try:
     → 327│                 exit_code = self._run(io)
       328│             except BrokenPipeError:
       329│                 # If we are piped to another process, it may close early and send a

  11  /opt/doc_venv/lib/python3.13/site-packages/poetry/console/application.py:236 in _run
       234│ 
       235│         with directory(self._working_directory):
     → 236│             exit_code: int = super()._run(io)
       237│ 
       238│         return exit_code

  10  /opt/doc_venv/lib/python3.13/site-packages/cleo/application.py:431 in _run
       429│             io.input.interactive(interactive)
       430│ 
     → 431│         exit_code = self._run_command(command, io)
       432│         self._running_command = None
       433│ 

   9  /opt/doc_venv/lib/python3.13/site-packages/cleo/application.py:473 in _run_command
       471│ 
       472│         if error is not None:
     → 473│             raise error
       474│ 
       475│         return terminate_event.exit_code

   8  /opt/doc_venv/lib/python3.13/site-packages/cleo/application.py:454 in _run_command
       452│ 
       453│         try:
     → 454│             self._event_dispatcher.dispatch(command_event, COMMAND)
       455│ 
       456│             if command_event.command_should_run():

   7  /opt/doc_venv/lib/python3.13/site-packages/cleo/events/event_dispatcher.py:26 in dispatch
        24│ 
        25│         if listeners:
     →  26│             self._do_dispatch(listeners, event_name, event)
        27│ 
        28│         return event

   6  /opt/doc_venv/lib/python3.13/site-packages/cleo/events/event_dispatcher.py:85 in _do_dispatch
        83│                 break
        84│ 
     →  85│             listener(event, event_name, self)
        86│ 
        87│     def _sort_listeners(self, event_name: str) -> None:

   5  /opt/doc_venv/lib/python3.13/site-packages/poetry/console/application.py:343 in configure_env
       341│ 
       342│         io = event.io
     → 343│         poetry = command.poetry
       344│ 
       345│         env_manager = EnvManager(poetry, io=io)

   4  /opt/doc_venv/lib/python3.13/site-packages/poetry/console/commands/command.py:24 in poetry
        22│     def poetry(self) -> Poetry:
        23│         if self._poetry is None:
     →  24│             return self.get_application().poetry
        25│ 
        26│         return self._poetry

   3  /opt/doc_venv/lib/python3.13/site-packages/poetry/console/application.py:181 in poetry
       179│             return self._poetry
       180│ 
     → 181│         self._poetry = Factory().create_poetry(
       182│             cwd=self._project_directory,
       183│             io=self._io,

   2  /opt/doc_venv/lib/python3.13/site-packages/poetry/factory.py:60 in create_poetry
        58│             io = NullIO()
        59│ 
     →  60│         base_poetry = super().create_poetry(cwd=cwd, with_groups=with_groups)
        61│ 
        62│         if version_str := base_poetry.local_config.get("requires-poetry"):

   1  /opt/doc_venv/lib/python3.13/site-packages/poetry/core/factory.py:48 in create_poetry
        46│         from poetry.core.pyproject.toml import PyProjectTOML
        47│ 
     →  48│         poetry_file = self.locate(cwd)
        49│         pyproject = PyProjectTOML(path=poetry_file)
        50│ 

  RuntimeError

  Poetry could not find a pyproject.toml file in / or its parents

  at /opt/doc_venv/lib/python3.13/site-packages/poetry/core/factory.py:802 in locate
      798│             if poetry_file.exists():
      799│                 return poetry_file
      800│ 
      801│         else:
    → 802│             raise RuntimeError(
      803│                 f"Poetry could not find a pyproject.toml file in {cwd} or its parents"
      804│             )
      805│

[dimbleby]

Probably belongs in cleo, not here

[abn]

The root cause of the issue might be cleo indeed, but it might be a "missing feature" for cleo or lack of proper way to register custom application level options.

CC: @Secrus for visibility.

For folks who want to test the fix out you can do so as described in https://github.com/python-poetry/poetry/pull/10021#issuecomment-2585476914.

[github-actions[bot]]

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