1
做graph.run()这是我创建从一个txt文件的图形py2neo
代码:缺少关键`scheme`错误而在Neo4j的
import csv
import re
from py2neo import Graph,Node,Relationship
graph = Graph("http://localhost:7474/browser/")
with open("<>") as infile:
row_num = 0
for row in infile:
row1 = re.split(r'\s{2,}', row[6:13])
row2 = re.split(r'\s{2,}', row[16:76])
#print len(row2[0]),row2[0]
if(row_num<1000):
x = len(row1[0])
code = Node("Dis_code", Code=row1[0])
valid = Node("Valid", Valid=row[14])
name = Node("Name_dis", Name=row2[0])
code_is_valid = Relationship(code,"valid or not",valid)
code_name= Relationship(code, "has name", name)
#x=len(row1[0])
print x
parent = []
if (x>3):
row_num = row_num + 1
print row1[0][:-1]
for cod in graph.run("MATCH (p:Dis_code{Code:row1[0][:-1]}) RETURN p"):
print cod
code_parent = Relationship(code,"has_parent",cod)
我得到以下错误:
Traceback (most recent call last):
File "C:/Users/<>/PycharmProjects/graph/data_model", line 24, in <module>
for cod in graph.run("MATCH (p:Dis_code{Code:row1[0][:-1]}) RETURN p"):
File "C:\Python27\lib\site-packages\py2neo-4.0.0b2-py2.7.egg\py2neo\graph.py", line 654, in run
return self.begin(autocommit=True).run(statement, parameters, **kwparameters)
File "C:\Python27\lib\site-packages\py2neo-4.0.0b2-py2.7.egg\py2neo\graph.py", line 380, in begin
return Transaction(self, autocommit)
File "C:\Python27\lib\site-packages\py2neo-4.0.0b2-py2.7.egg\py2neo\graph.py", line 804, in __init__
self.session = driver.session()
File "build\bdist.win32\egg\neo4j\v1\bolt.py", line 54, in session
neo4j.v1.security.Unauthorized: Unsupported authentication token, missing key `scheme`
run
module's documentation我没有找到任何称为scheme
的内容。那么,我在哪里出错了?
只是检查(我不是py2neo的专家),但是你有没有正确的URL(http:// localhost:7474/browser /)?你可以尝试只用Graph()...,因为你似乎想连接到本地主机数据库? –
是的,URL是正确的,我也尝试过Graph(),但是我得到了相同的错误 –
不够公平。你可以试试: from py2neo import图表,节点,关系 graph = Graph(“http:// localhost:7474/browser /”) 如果这样也行不通,你可以添加用户名密码你的数据库在那里的组合: from py2neo import图表,节点,关系 graph = Graph(“http://: @localhost:7474/browser /”)...我们可以确定这两条线如果这个问题是与身份验证或与您的代码的另一部分 –