runtime error

Exit code: 1. Reason: of langchain==0.2.0. Please import from langchain-community instead: `from langchain_community.llms import OpenAI`. To install langchain-community run `pip install -U langchain-community`. from langchain.llms import OpenAI /home/user/app/app.py:5: LangChainDeprecationWarning: Importing LLMs from langchain is deprecated. Importing from langchain will no longer be supported as of langchain==0.2.0. Please import from langchain-community instead: `from langchain_community.llms import OpenAI`. To install langchain-community run `pip install -U langchain-community`. from langchain.llms import OpenAI /home/user/app/app.py:18: LangChainDeprecationWarning: The class `OpenAI` was deprecated in LangChain 0.0.10 and will be removed in 1.0. An updated version of the class exists in the :class:`~langchain-openai package and should be used instead. To use it run `pip install -U :class:`~langchain-openai` and import as `from :class:`~langchain_openai import OpenAI``. open_ai = OpenAI(temperature=0.7) Traceback (most recent call last): File "/home/user/app/app.py", line 18, in <module> open_ai = OpenAI(temperature=0.7) File "/usr/local/lib/python3.10/site-packages/langchain_core/_api/deprecation.py", line 223, in warn_if_direct_instance return wrapped(self, *args, **kwargs) File "/usr/local/lib/python3.10/site-packages/langchain_core/load/serializable.py", line 130, in __init__ super().__init__(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/pydantic/main.py", line 253, in __init__ validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self) pydantic_core._pydantic_core.ValidationError: 1 validation error for OpenAI Value error, 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, input_value={'temperature': 0.7, 'mod...ne, 'http_client': None}, input_type=dict] For further information visit https://errors.pydantic.dev/2.11/v/value_error

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