poetry SolverProblemError when trying to lock an environment containing a matplotlib pip dependency

[lesteve]

# /tmp/environment.yml
channels:
  - conda-forge
dependencies:
  - python=3.9
  - pip
  - pip:
    - matplotlib

conda-lock lock -p linux-64 -f /tmp/environment.yml 

Error:

poetry.puzzle.exceptions.SolverProblemError: Because -dummy-package- depends on matplotlib-base (*) which doesn't match any versions, version solving failed.

Probably there is some conversion logic between conda-forge and pip package names that kicks in although it should not?

Full output:

❯ conda-lock lock -p linux-64 -f /tmp/environment.yml 
Locking dependencies for ['linux-64']...
Traceback (most recent call last):
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/poetry/puzzle/solver.py", line 233, in _solve
    result = resolve_version(
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/poetry/mixology/__init__.py", line 7, in resolve_version
    return solver.solve()
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/poetry/mixology/version_solver.py", line 83, in solve
    self._propagate(next)
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/poetry/mixology/version_solver.py", line 123, in _propagate
    root_cause = self._resolve_conflict(incompatibility)
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/poetry/mixology/version_solver.py", line 321, in _resolve_conflict
    raise SolveFailure(incompatibility)
poetry.mixology.failure.SolveFailure: Because -dummy-package- depends on matplotlib-base (*) which doesn't match any versions, version solving failed.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/local/lesteve/miniconda3/envs/conda-lock/bin/conda-lock", line 8, in <module>
    sys.exit(main())
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/click/core.py", line 1128, in __call__
    return self.main(*args, **kwargs)
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/click/core.py", line 1053, in main
    rv = self.invoke(ctx)
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/click/core.py", line 1659, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/click/core.py", line 1395, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/click/core.py", line 754, in invoke
    return __callback(*args, **kwargs)
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/conda_lock/conda_lock.py", line 1086, in lock
    lock_func(
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/conda_lock/conda_lock.py", line 885, in run_lock
    make_lock_files(
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/conda_lock/conda_lock.py", line 323, in make_lock_files
    lock_content = lock_content | create_lockfile_from_spec(
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/conda_lock/conda_lock.py", line 655, in create_lockfile_from_spec
    deps = _solve_for_arch(
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/conda_lock/conda_lock.py", line 621, in _solve_for_arch
    pip_deps = solve_pypi(
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/conda_lock/pypi_solver.py", line 241, in solve_pypi
    result = s.solve(use_latest=to_update)
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/poetry/puzzle/solver.py", line 65, in solve
    packages, depths = self._solve(use_latest=use_latest)
  File "/home/local/lesteve/miniconda3/envs/conda-lock/lib/python3.10/site-packages/poetry/puzzle/solver.py", line 241, in _solve
    raise SolverProblemError(e)
poetry.puzzle.exceptions.SolverProblemError: Because -dummy-package- depends on matplotlib-base (*) which doesn't match any versions, version solving failed.

[lesteve]

Nice, thanks a lot for the fix!