[Solved] What is wrong with this code?node1 = Node('A') node2 = Node('B') edge = Edge(node1, node2) print(edge.start) | LangChain

LangChain - LangGraph for Stateful Agents

What is wrong with this code?

node1 = Node('A')
node2 = Node('B')
edge = Edge(node1, node2)
print(edge.start)

AEdge constructor is missing parameters

BNode names must be integers

Cedge.start returns a Node object, not a string

Dprint cannot output node objects

Step-by-Step Solution

Solution:

Step 1: Understand what edge.start returns
edge.start returns the Node object, not its name string.
Step 2: Recognize print output type
Printing edge.start will show object info, not the node's name.
Final Answer:
edge.start returns a Node object, not a string -> Option C
Quick Check:
edge.start = Node object [OK]

Quick Trick: Use edge.start.name to print node name [OK]

Common Mistakes:

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