pip integration: support for --find-links/-f

[mjlbach]

Checklist

• [X] I added a descriptive title
• [X] I searched open reports and couldn't find a duplicate

What happened?

Not sure if this is a desired feature.

environment.yaml

channels:
  - defaults
  - pytorch
  - nvidia
  - fvcore
  - iopath
  - conda-forge
dependencies:
  - python=3.10
  - pip
  - pytorch=2.0.1=py3.10_cuda11.8_cudnn8.7.0_0
  - torchvision=0.15.2=py310_cu118
  - pytorch-cuda=11.8
  - fvcore
  - iopath
  - pip:
    - -f https://dl.fbaipublicfiles.com/pytorch3d/packaging/wheels/py310_cu118_pyt201/download.html
    - pytorch3d
    # - https://dl.fbaipublicfiles.com/pytorch3d/packaging/wheels/py310_cu118_pyt201/pytorch3d-0.7.4-cp310-cp310-linux_x86_64.whl

conda-lock

Traceback (most recent call last):
  File "/home/michael/.local/bin/conda-lock", line 8, in <module>
    sys.exit(main())
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/click/core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/click/core.py", line 1078, in main
    rv = self.invoke(ctx)
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/click/core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/click/decorators.py", line 33, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/conda_lock/conda_lock.py", line 1332, in lock
    lock_func(
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/conda_lock/conda_lock.py", line 1040, in run_lock
    make_lock_files(
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/conda_lock/conda_lock.py", line 328, in make_lock_files
    lock_spec = make_lock_spec(
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/conda_lock/src_parser/__init__.py", line 89, in make_lock_spec
    lock_specs = _parse_source_files(src_files, platforms)
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/conda_lock/src_parser/__init__.py", line 70, in _parse_source_files
    desired_envs.append(parse_environment_file(src_file, platforms))
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/conda_lock/src_parser/environment_yaml.py", line 127, in parse_environment_file
    dep_map = {
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/conda_lock/src_parser/environment_yaml.py", line 128, in <dictcomp>
    platform: _parse_environment_file_for_platform(content, category, platform)
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/conda_lock/src_parser/environment_yaml.py", line 70, in _parse_environment_file_for_platform
    parse_python_requirement(
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/conda_lock/src_parser/pyproject_toml.py", line 413, in parse_python_requirement
    parsed_req = parse_requirement_specifier(requirement)
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/conda_lock/src_parser/pyproject_toml.py", line 387, in parse_requirement_specifier
    return Requirement(requirement)
  File "/home/michael/.local/pipx/venvs/conda-lock/lib/python3.10/site-packages/packaging/requirements.py", line 37, in __init__
    raise InvalidRequirement(str(e)) from e
packaging.requirements.InvalidRequirement: Expected package name at the start of dependency specifier
    -f https://dl.fbaipublicfiles.com/pytorch3d/packaging/wheels/py310_cu118_pyt201/download.html

Conda Info

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Conda Config

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Conda list

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Additional Context

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