如果name是一个参数，则需要将其括在大括号中。

MATCH (person) WHERE person.name = {name} RETURN person

您的Python代码可能沿着以下代码行

graph_db = neo4j.GraphDatabaseService()
qs = 'MATCH (person) WHERE person.name = {name} RETURN person'
query = neo4j.CypherQuery(graph_db, qs)
results = query.execute(name='Rahul')
print results

如果你想把你的查询封装在一个事务中，你可以使用cypher模块来创建一个会话，然后创建一个事务对象。实现这一点的语法与neo4j.CypherQuery中的语法略有不同，在stephenmuss的回答中提到过。

from py2neo import neo4j, cypher
graph_db = neo4j.GraphDatabaseService('http://localhost:7474/db/data/')

# Create a Session

session = cypher.Session('http://localhost:7474')

# Create a transaction

tx = session.create_transaction()

# Write your query, and then include it in the transaction with a dictionary

# of parameters.

qs = 'MATCH (person) WHERE person.name = {name} RETURN person'
tx.append(qs, parameters={'name': 'Rahul'})
results = tx.commit()

获取节点的另一种方法是：

from py2neo import Graph, authenticate

server = "localhost:7474"

# set up authentication parameters

authenticate(server, <user>, <password>)

graph = Graph("{0}/db/data".format(server))
results = graph.find("person", "name", "Rahul")

为了清楚起见，将参数传递给py 2neo查询的一般答案是：

from py2neo import Graph

graph = Graph("URI", auth=("USER", "PASSWORD"))
graph.run("MATCH (p:Person) WHERE p.name=$name RETURN p", parameters={'name': 'Rahul'})

(Note$符号）