安裝：

• 直接在命令列pip3 install py2neo
• 官網下載（解壓後放到python下的scripts中，在py2neo目錄下cmd，輸入python setup.py install

連結

auth=(使用者名稱,密碼)

from py2neo import Graph,Node,Relationship
graph = Graph("http://localhost:7474",auth=("neo4j","password"))

• 問題：unauthorized(self.uri.string)

• 解決方法：

  from py2neo import authenticate,Graph
  authenticate("localhost:7474","賬號","密碼")
  graph = Graph("http://localhost:7474/db/data")
   
  

建立節點和關係

（已通過batch-import匯入，這步省略

a = Node("Person", name="Alice")
b = Node("Person", name="Bob")
ab = Relationship(a, "KNOWS", b)
graph.create(ab)

查詢

查詢節點（使用原生查詢語句

from py2neo import authenticate,Graph
graph = Graph("http://localhost:7474",auth=("neo4j","password"))

str = "match (變數名a:標籤名{屬性名:特定屬性值}) return a"
x = graph.run(str).data()
y = pd.DataFrame(x)