paper-qa not working

[nevin7771]

I had .env file in my folder and tried to load_dotenv() and added OPENAI_API_KEY to the env as well but still getting below error

from paperqa import Docs
File "/opt/homebrew/lib/python3.11/site-packages/paperqa/init.py", line 1, in
from .docs import Answer, Docs, PromptCollection, Doc, Text
File "/opt/homebrew/lib/python3.11/site-packages/paperqa/docs.py", line 35, in
class Docs(BaseModel, arbitrary_types_allowed=True, smart_union=True):
File "/opt/homebrew/lib/python3.11/site-packages/paperqa/docs.py", line 43, in Docs
llm: Union[str, BaseLanguageModel] = ChatOpenAI(
^^^^^^^^^^^
File "/opt/homebrew/lib/python3.11/site-packages/langchain/load/serializable.py", line 64, 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)