"Unknown direct dependency type None" while showing outdated deps

[akeeman]

I've got some private library (say, lib-a), that depends on some other private library (say, lib-b). I'm lazy, distributing private libs using git.

[tool.poetry]
name = "lib-a"

[tool.poetry.dependencies]
lib-b = "^x.y.z"

[tool.poetry.group.dev.dependencies]
lib-b = { "git": "...", branch = "x.y" }

Using this structure allows me to have some application that brings it's own lib-b, that satisfies the ^x.y.z version requirement, but is not x.y, as given in the dev dependencies.

app's pyproject.toml

[tool.poetry]
name = "app-a"

[tool.poetry.dependencies]
lib-a = { "git": "...", branch = "b.c" }
lib-b = { "git": "...", branch = "x.a" }   # where x.a's provided version satisfies ^x.y.z

Ok. So far so good. But when I now try to list the outdated dependencies on lib-a, it can't find a direct dependency type for lib-b, and raises a RuntimeError with message "Unknown direct dependency type None"

full shell output

$ poetry show --outdated -vvv
Loading configuration file /home/username/.config/pypoetry/config.toml
Using virtualenv: /home/username/path/to/.venv
Project environment contains an empty path in sys_path, ignoring.
[keyring.backend] Loading KWallet
[keyring.backend] Loading SecretService
[keyring.backend] Loading Windows
[keyring.backend] Loading chainer
[keyring.backend] Loading libsecret
[keyring.backend] Loading macOS
Creating new session for pypi.org
Source (PyPI): 1 packages found for <package-name>

  Stack trace:

  9  ~/.local/share/pypoetry/venv/lib/python3.10/site-packages/cleo/application.py:329 in run
      327│ 
      328│             try:
    → 329│                 exit_code = self._run(io)
      330│             except Exception as e:
      331│                 if not self._catch_exceptions:

  8  ~/.local/share/pypoetry/venv/lib/python3.10/site-packages/poetry/console/application.py:185 in _run
      183│         self._load_plugins(io)
      184│ 
    → 185│         exit_code: int = super()._run(io)
      186│         return exit_code
      187│ 

  7  ~/.local/share/pypoetry/venv/lib/python3.10/site-packages/cleo/application.py:423 in _run
      421│             io.input.set_stream(stream)
      422│ 
    → 423│         exit_code = self._run_command(command, io)
      424│         self._running_command = None
      425│ 

  6  ~/.local/share/pypoetry/venv/lib/python3.10/site-packages/cleo/application.py:465 in _run_command
      463│ 
      464│         if error is not None:
    → 465│             raise error
      466│ 
      467│         return event.exit_code

  5  ~/.local/share/pypoetry/venv/lib/python3.10/site-packages/cleo/application.py:449 in _run_command
      447│ 
      448│             if event.command_should_run():
    → 449│                 exit_code = command.run(io)
      450│             else:
      451│                 exit_code = ConsoleCommandEvent.RETURN_CODE_DISABLED

  4  ~/.local/share/pypoetry/venv/lib/python3.10/site-packages/cleo/commands/base_command.py:119 in run
      117│         io.input.validate()
      118│ 
    → 119│         status_code = self.execute(io)
      120│ 
      121│         if status_code is None:

  3  ~/.local/share/pypoetry/venv/lib/python3.10/site-packages/cleo/commands/command.py:83 in execute
       81│ 
       82│         try:
    →  83│             return self.handle()
       84│         except KeyboardInterrupt:
       85│             return 1

  2  ~/.local/share/pypoetry/venv/lib/python3.10/site-packages/poetry/console/commands/show.py:235 in handle
      233│ 
      234│             if show_latest:
    → 235│                 latest = self.find_latest_package(locked, root)
      236│                 if not latest:
      237│                     latest = locked

  1  ~/.local/share/pypoetry/venv/lib/python3.10/site-packages/poetry/console/commands/show.py:511 in find_latest_package
      509│                 if dep.name == package.name:
      510│                     provider = Provider(root, self.poetry.pool, NullIO())
    → 511│                     return provider.search_for_direct_origin_dependency(dep)
      512│ 
      513│         name = package.name

  RuntimeError

  Unknown direct dependency type None

  at ~/.local/share/pypoetry/venv/lib/python3.10/site-packages/poetry/puzzle/provider.py:244 in search_for_direct_origin_dependency
      240│             dependency = cast("URLDependency", dependency)
      241│             package = self._search_for_url(dependency)
      242│ 
      243│         else:
    → 244│             raise RuntimeError(
      245│                 f"Unknown direct dependency type {dependency.source_type}"
      246│             )
      247│ 
      248│         if dependency.is_vcs():

• To resolve this, the script could have known that the dependency is always fetched from the vcs location given elsewhere, but it does not resolve this. Going this path is a bit complicated.
• Another possible easy solution would be to catch the error and ignore it entirely (what's outdated in the context of something that does not seem to exist at all?). Currently that requires catching a rather unspecific RuntimeError exception. Going this patch is easier, when a more specific exception class is used.

What do you think? Is there a better way to do this in the first place? Are one of the above good possible solutions?

[dimbleby]

#6016

[neersighted]

Closing as already resolved.

[github-actions]

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