Updated

main.py

@@ -1,12 +1,16 @@
 from fastapi import FastAPI, HTTPException, Header
 from pydantic import BaseModel
-from transformers import pipeline
-from langchain import HuggingFacePipeline
+import torch
+import logging
+
+# LangChain imports (stable with latest version >=1.0)
+from langchain.llms import HuggingFacePipeline
 from langchain.chains import LLMChain
 from langchain.prompts import PromptTemplate
 from langchain.memory import ConversationBufferMemory
-import torch
-import logging
+
+# Transformers pipeline
+from transformers import pipeline
 
 
 # ===============================================

requirements.txt

@@ -1,10 +1,8 @@
-fastapi
-uvicorn[standard]
-torch
-transformers
-accelerate
-langchain
-langchain-community
-huggingface-hub
-pydantic
-langchain-core
+fastapi>=0.101.0
+uvicorn[standard]>=0.23.0
+torch>=2.1.0
+transformers>=4.40.0
+accelerate>=0.25.0
+langchain>=1.0.0
+huggingface-hub>=1.30.0
+pydantic>=1.10.10