langchain-rag-app/ Client.__init__() got an unexpected keyword argument 'proxies'

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Describe the bug
A clear and concise description of what the bug is.
In langchain-rag-app directory, according to README.md, I excecute 'docker-compose up --build'. There is an error related to chatbot_api.

source_code_final-chatbot_api-1 | from chains.hospital_cypher_chain import hospital_cypher_chain
source_code_final-chatbot_api-1 | File "/app/chains/hospital_cypher_chain.py", line 149, in
source_code_final-chatbot_api-1 | cypher_llm=ChatOpenAI(model=HOSPITAL_CYPHER_MODEL, temperature=0),
source_code_final-chatbot_api-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
source_code_final-chatbot_api-1 | File "/usr/local/lib/python3.11/site-packages/langchain_core/load/serializable.py", line 107, in init
source_code_final-chatbot_api-1 | super().init(**kwargs)
source_code_final-chatbot_api-1 | File "/usr/local/lib/python3.11/site-packages/pydantic/v1/main.py", line 341, in init
source_code_final-chatbot_api-1 | raise validation_error
source_code_final-chatbot_api-1 | pydantic.v1.error_wrappers.ValidationError: 1 validation error for ChatOpenAI
source_code_final-chatbot_api-1 | root
source_code_final-chatbot_api-1 | Client.init() got an unexpected keyword argument 'proxies' (type=type_error)
source_code_final-chatbot_api-1 | Failed to write data to connection ResolvedIPv4Address(('34.126.114.186', 7687)) (ResolvedIPv4Address(('34.126.114.186', 7687)))
source_code_final-chatbot_api-1 | Failed to write data to connection IPv4Address(('7cf48f19.databases.neo4j.io', 7687)) (ResolvedIPv4Address(('34.126.114.186', 7687)))

To Reproduce
Steps to reproduce the behavior:

1. Go to langchain-rag-app/source_code_final directory.
2. In console terminal, docker-compose up --build
3. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Desktop (please complete the following information):

• OS: Ubuntu22.04

Additional context
Add any other context about the problem here.

I searched similar problems and fixed problem manually. https://community.openai.com/t/error-with-openai-1-56-0-client-init-got-an-unexpected-keyword-argument-proxies/1040332/24
The problem is version of openai and httpx.

• I update openai version in chatbot_api/pyproject.toml.

• "openai==1.7.2" --> "openai==1.55.3"

• I update httpx in requirements.txt

• httpx==0.26.0 --> httpx==0.27.2

Then, it works fine!!

I think it would be good to update this later.
Thank you.

Inizia in langchain-rag-app/source_code_final e ispeziona chatbot_api/pyproject.toml e requirements.txt per verificare le versioni delle dipendenze OpenAI e httpx. Ricostruisci con docker-compose up --build e conferma che chatbot_api si avvii senza l’errore Client.init() segnalato.