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catch networkx error (#1201)

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Harrison Chase 2023-02-20 21:43:02 -08:00 committed by GitHub
parent 44c8d8a9ac
commit fb83cd4ff4
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1 changed files with 7 additions and 1 deletions
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8
langchain/graphs/networkx_graph.py
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@ -50,7 +50,13 @@ class NetworkxEntityGraph:
def __init__(self) -> None: def __init__(self) -> None:
"""Create a new graph.""" """Create a new graph."""
import networkx as nx try:
import networkx as nx
except ImportError:
raise ValueError(
"Could not import networkx python package. "
"Please it install it with `pip install networkx`."
)
self._graph = nx.DiGraph() self._graph = nx.DiGraph()