py2neo 中未读取参数

Question

我正在尝试根据节点号进行查询并返回属性列表。以下密码查询在 neo4j 浏览器中有效，但是当我尝试通过 py2neo 传递相同的密码查询时，我得到：

"Expected a property container or number here, but got:91"

其中“91”是我要查询的节点号。

摘自我的代码：

def neighbor_finder(a):
     try:                    
        graph_db = neo4j.GraphDatabaseService(url)                     

        query = neo4j.CypherQuery(graph_db,
         """CYPHER 2.0                         
            MATCH (n)-[r]-(m)            
            WHERE ID(n) = {t}
            WITH collect (Distinct m.size) as sizes, collect (Distinct m.weight) as weights, collect (Distinct m.color) as colors, collect (distinct n.label) as node_
            RETURN sizes, weights, colors, node_                                    
            """)                                                                                                                                     
        result = query.execute(t=a)

        for r in result:
            column = [str(item) for item in r.columns]
            value = [str(item) for item in r.values]                                             
            db_dict={k: v for k, v in zip(column, value)}
            for x, y in db_dict.items():
                print x, y

    except Exception as e:
        print e

Answer 1

您能否提供传递给此函数的a 参数的类型和值的详细信息？没有它，我看不到 py2neo 传递给查询参数的内容。

Answer 2

没有读取参数“a”，因为它需要声明为整数，cypher/py2neo 当前正在将其作为字符串读取。