langchain 1.0 needed update

[mytk2012]

[ultmaster]

I think this may need help from community, as the team is short in bandwidth.

Also needs to run experiments to make sure the results are still reproducible.

[lspinheiro]

@ultmaster , may I help with this?

[ultmaster]

@lspinheiro sure! please do! thanks.

[lspinheiro]

I started looking into this. At the moment there are some dependency conflicts that need to be resolved. The solutions would be to either constraint the python version as <=3.12 or use `override-dependencies to force the numpy version. Thoughts?

lpinheiro@LP-ClipchampMS:~/git/agent-lightning$ uv lock
warning: The `extra-build-dependencies` option is experimental and may change without warning. Pass `--preview-features extra-build-dependencies` to disable this warning.
  × No solution found when resolving dependencies for split (markers: python_full_version >= '3.13' and platform_machine == 'aarch64' and sys_platform == 'linux'; included:
  │ agentlightning[group:core-stable], agentlightning[group:tinker], agentlightning[group:torch-cu128], agentlightning[group:torch-gpu-stable], agentlightning[group:torch-stable],
  │ agentlightning[group:trl]; excluded: agentlightning[group:core-legacy], agentlightning[group:torch-cpu], agentlightning[group:torch-gpu-legacy], agentlightning[group:torch-legacy]):
  ╰─▶ Because verl>=0.6.0 depends on numpy<2.0.0 and only the following versions of verl are available:
          verl<=0.6.0
          verl==0.6.1
      we can conclude that verl>=0.6.0 depends on numpy<2.0.0.
      And because agentlightning:torch-gpu-stable depends on verl>=0.6.0 and langchain-community==0.4.1 depends on numpy{python_full_version >= '3.13'}>=2.1.0, we can conclude that
      agentlightning:torch-gpu-stable and langchain-community==0.4.1 are incompatible.
      And because only langchain-community<=0.4.1 is available and agentlightning:agents depends on langchain-community>=0.4.1, we can conclude that agentlightning:agents and
      agentlightning:torch-gpu-stable are incompatible.
      And because your project requires agentlightning:agents and agentlightning:torch-gpu-stable, we can conclude that your project's requirements are unsatisfiable.

      hint: `verl` was found on https://pypi.org/simple, but not at the requested version (all of:
          verl>0.6.0,<0.6.1
          verl>0.6.1
      ). A compatible version may be available on a subsequent index (e.g., https://download.pytorch.org/whl/cu128). By default, uv will only consider versions that are published on the first index that
      contains a given package, to avoid dependency confusion attacks. If all indexes are equally trusted, use `--index-strategy unsafe-best-match` to consider all versions from all indexes, regardless of
      the order in which they were defined.

      hint: Pre-releases are available for `langchain-community` in the requested range (e.g., 1.0.0a1), but pre-releases weren't enabled (try: `--prerelease=allow`)

      hint: `langchain-community` was found on https://pypi.org/simple, but not at the requested version (langchain-community>0.4.1). A compatible version may be available on a subsequent index (e.g.,
      https://download.pytorch.org/whl/cu128). By default, uv will only consider versions that are published on the first index that contains a given package, to avoid dependency confusion attacks. If all
      indexes are equally trusted, use `--index-strategy unsafe-best-match` to consider all versions from all indexes, regardless of the order in which they were defined.

      hint: While the active Python version is 3.12, the resolution failed for other Python versions supported by your project. Consider limiting your project's supported Python versions using
      `requires-python`.