RAGAS require OPENAI_API_KEY on import

[yujonglee]

from ragas import evaluate

Run task test:ci
task: [test:ci] poetry run pytest -m "not todo" -n auto --benchmark-disable --cov=fastrepl --cov-report xml:cov.xml --ignore=tests/integration
Traceback (most recent call last):
  File "/home/runner/work/fastrepl/fastrepl/.venv/bin/pytest", line 8, in <module>
    sys.exit(console_main())
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/_pytest/config/__init__.py", line 192, in console_main
    code = main()
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/_pytest/config/__init__.py", line 150, in main
    config = _prepareconfig(args, plugins)
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/_pytest/config/__init__.py", line 331, in _prepareconfig
    config = pluginmanager.hook.pytest_cmdline_parse(
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/pluggy/_hooks.py", line 433, in __call__
    return self._hookexec(self.name, self._hookimpls, kwargs, firstresult)
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/pluggy/_manager.py", line 112, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/pluggy/_callers.py", line 133, in _multicall
    teardown[0].send(outcome)
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/_pytest/helpconfig.py", line 104, in pytest_cmdline_parse
    config: Config = outcome.get_result()
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/pluggy/_result.py", line 108, in get_result
    raise exc.with_traceback(exc.__traceback__)
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/pluggy/_callers.py", line 80, in _multicall
    res = hook_impl.function(*args)
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/_pytest/config/__init__.py", line 1075, in pytest_cmdline_parse
    self.parse(args)
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/_pytest/config/__init__.py", line 1425, in parse
    self._preparse(args, addopts=addopts)
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/_pytest/config/__init__.py", line 1305, in _preparse
    self.pluginmanager.load_setuptools_entrypoints("pytest11")
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/pluggy/_manager.py", line 364, in load_setuptools_entrypoints
    plugin = ep.load()
  File "/opt/hostedtoolcache/Python/3.9.18/x64/lib/python3.9/importlib/metadata.py", line 86, in load
    module = import_module(match.group('module'))
  File "/opt/hostedtoolcache/Python/3.9.18/x64/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 972, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/home/runner/work/fastrepl/fastrepl/fastrepl/__init__.py", line 6, in <module>
    from fastrepl.eval import *
  File "/home/runner/work/fastrepl/fastrepl/fastrepl/eval/__init__.py", line 2, in <module>
    from fastrepl.eval.model import *
  File "/home/runner/work/fastrepl/fastrepl/fastrepl/eval/model/__init__.py", line 3, in <module>
    from fastrepl.eval.model.others import RAGAS
  File "/home/runner/work/fastrepl/fastrepl/fastrepl/eval/model/others.py", line 9, in <module>
    from ragas import evaluate
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/ragas/__init__.py", line 1, in <module>
    from ragas.evaluation import evaluate
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/ragas/evaluation.py", line 9, in <module>
    from ragas.metrics.base import Metric
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/ragas/metrics/__init__.py", line 1, in <module>
    from ragas.metrics.answer_relevance import AnswerRelevancy, answer_relevancy
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/ragas/metrics/answer_relevance.py", line 115, in <module>
    answer_relevancy = AnswerRelevancy()
  File "<string>", line 4, in __init__
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/ragas/metrics/base.py", line 110, in _llm_factory
    return ChatOpenAI(model_name="gpt-3.5-turbo-16k")  # type: ignore
  File "/home/runner/work/fastrepl/fastrepl/.venv/lib/python3.9/site-packages/langchain/load/serializable.py", line 75, in __init__
    super().__init__(**kwargs)
  File "pydantic/main.py", line 341, in pydantic.main.BaseModel.__init__
pydantic.error_wrappers.ValidationError: 1 validation error for ChatOpenAI
__root__
  Did not find openai_api_key, please add an environment variable `OPENAI_API_KEY` which contains it, or pass  `openai_api_key` as a named parameter. (type=value_error)
task: Failed to run task "test:ci": exit status 1
Error: Process completed with exit code 201.