Update dependencies (#197)

Author: tomasonjo

api.py

@@ -1,6 +1,6 @@
 import os
 
-from langchain_community.graphs import Neo4jGraph
+from langchain_neo4j import Neo4jGraph
 from dotenv import load_dotenv
 from utils import (
     create_vector_index,

bot.py

@@ -3,7 +3,7 @@
 import streamlit as st
 from streamlit.logger import get_logger
 from langchain.callbacks.base import BaseCallbackHandler
-from langchain_community.graphs import Neo4jGraph
+from langchain_neo4j import Neo4jGraph
 from dotenv import load_dotenv
 from utils import (
     create_vector_index,

chains.py

@@ -8,7 +8,7 @@
 from langchain_ollama import ChatOllama
 from langchain_aws import ChatBedrock
 
-from langchain_community.vectorstores import Neo4jVector
+from langchain_neo4j import Neo4jVector
 
 from langchain.chains import RetrievalQAWithSourcesChain
 from langchain.chains.qa_with_sources import load_qa_with_sources_chain

docker-compose.yml

@@ -31,7 +31,7 @@ services:
 
   database:
     user: neo4j:neo4j
-    image: neo4j:5.23
+    image: neo4j:5.26
     ports:
       - 7687:7687
       - 7474:7474

loader.py

@@ -1,7 +1,7 @@
 import os
 import requests
 from dotenv import load_dotenv
-from langchain_community.graphs import Neo4jGraph
+from langchain_neo4j import Neo4jGraph
 import streamlit as st
 from streamlit.logger import get_logger
 from chains import load_embedding_model
@@ -15,8 +15,6 @@
 password = os.getenv("NEO4J_PASSWORD")
 ollama_base_url = os.getenv("OLLAMA_BASE_URL")
 embedding_model_name = os.getenv("EMBEDDING_MODEL")
-# Remapping for Langchain Neo4j integration
-os.environ["NEO4J_URL"] = url
 
 logger = get_logger(__name__)
 

pdf_bot.py

@@ -5,7 +5,7 @@
 from PyPDF2 import PdfReader
 from langchain.callbacks.base import BaseCallbackHandler
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain_community.vectorstores import Neo4jVector
+from langchain_neo4j import Neo4jVector
 from streamlit.logger import get_logger
 from chains import (
     load_embedding_model,

requirements.txt

@@ -12,9 +12,10 @@ sse-starlette
 boto3
 streamlit==1.32.1
 # missing from the langchain base image?
-langchain-openai==0.2.4
-langchain-community==0.3.3
-langchain-google-genai==2.0.3
-langchain-ollama==0.2.0
-langchain-huggingface==0.1.1
-langchain-aws==0.2.4
+langchain-openai==0.3.8
+langchain-community==0.3.19
+langchain-google-genai==2.0.11
+langchain-ollama==0.2.3
+langchain-huggingface==0.1.2
+langchain-aws==0.2.15
+langchain-neo4j==0.4.0