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Update deprecated Neo4jGraph import to support langchain-neo4j #2084

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Update deprecated Neo4jGraph import to support langchain-neo4j #2084

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12 changes: 9 additions & 3 deletions mem0/memory/graph_memory.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,16 @@
from mem0.memory.utils import format_entities

try:
from langchain_community.graphs import Neo4jGraph
from langchain_neo4j import Neo4jGraph
except ImportError:
raise ImportError("langchain_community is not installed. Please install it using pip install langchain-community")

try:
from langchain_community.graphs.neo4j_graph import Neo4jGraph
except ImportError:
raise ImportError(
"Neither 'langchain-neo4j' nor 'langchain-community' is installed. "
"Please install one using 'pip install langchain-neo4j' or 'pip install langchain-community'."
)

try:
from rank_bm25 import BM25Okapi
except ImportError:
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58 changes: 37 additions & 21 deletions poetry.lock
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1 change: 1 addition & 0 deletions pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ openai = "^1.33.0"
posthog = "^3.5.0"
pytz = "^2024.1"
sqlalchemy = "^2.0.31"
langchain-neo4j = "^0.1.1"

[tool.poetry.group.graph.dependencies]
langchain-community = "^0.3.1"
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