[StevenShi-23]

This PR addresses #57 by adding veRL dependencies to project setup script and fixing imports.

[salesforce-cla]

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[Copilot]

Pull request overview

Adds packaging support for the VERL-based RL integration and prevents package import failures when the (currently missing/WIP) fully-async module isn’t present.

Changes:

• Introduces a new rl optional dependency group with VERL + supporting libs.
• Makes fully-async exports in mcpuniverse.rl.integrations.verl optional via a guarded import.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
pyproject.toml	Adds an rl extra to install VERL/RL-related dependencies.
mcpuniverse/rl/integrations/verl/__init__.py	Wraps fully_async imports/exports in a try/except to avoid import-time failures.

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[Copilot]

This adds an rl extra in pyproject.toml, but the repo’s main install path documented in README.md is pip install -r requirements.txt, and requirements.txt currently only mentions the vllm/sglang extras. To avoid users still hitting missing-dependency errors for the VERL integration, consider updating the documented installation flow (e.g., mention pip install -e '.[rl]') and/or keeping requirements.txt guidance in sync with this new extra.

[Copilot]

The except ImportError: pass will also swallow import errors coming from inside fully_async once that module exists (e.g., missing optional deps, syntax errors), making failures hard to debug. Consider only handling the specific case where the submodule is missing (e.g., catch ModuleNotFoundError and verify e.name matches this package’s fully_async module, or pre-check with importlib.util.find_spec), and let other import errors surface.

Suggested change

	except ImportError:
	pass
	except ModuleNotFoundError as e:
	# Only ignore the error if the optional fully_async module itself is missing.
	# Re-raise if some other module is missing so real import errors are not hidden.
	if e.name not in (__name__ + ".fully_async", "fully_async"):
	raise

[StevenShi-23]

@ChiYeungLaw i've cleaned up the RL installation steps and vllm env var. Please let me know how you think, thanks!