虽然这个问题在过去已经解决了几次，但我尝试了所有的建议，问题仍然存在，我希望有人会对此有所了解。
我的公司在远程ubuntu服务器上设置了neo4j（v2.1.6）图形数据库。 为了修改和更新服务器中的数据，我使用的是python包py2neo。
服务器的端点地址为http://fake-address.com/db/data，身份验证ID /密码为'fakeId'和'fakePassWord'。
为了访问远程数据库，在我的本地机器python终端中，
我尝试了以下内容：
from py2neo import authenticate, Graph
authenticate("fake-address.com:80", "fakeId", "fakePassWord")
graph = Graph("http://fake-address.com:80/db/data/")
result = graph.cypher.execute("CREATE (a:Color)")
不幸的是，上面的命令导致以下错误消息。
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py2neo/cypher/core.pyc in execute(self, statement, parameters, **kwparameters)
107 """
108 if self.transaction_uri:
--> 109 tx = CypherTransaction(self.transaction_uri)
110 tx.append(statement, parameters, **kwparameters)
111 results = tx.commit()
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py2neo/cypher/core.pyc in __init__(self, uri)
180 self.__commit = None
181 self.__finished = False
--> 182 self.graph = self.__begin.graph
183
184 def __enter__(self):
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py2neo/core.pyc in graph(self)
211 :rtype: :class:`.Graph`
212 """
--> 213 return self.__service_root.graph
214
215 @property
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py2neo/core.pyc in graph(self)
523 if self.__graph is None:
524 try:
--> 525 uri = self.resource.metadata["data"]
526 except KeyError:
527 if "authentication" in self.resource.metadata:
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py2neo/core.pyc in metadata(self)
226 if self.__initial_metadata is not None:
227 return self.__initial_metadata
--> 228 self.get()
229 return self.__last_get_response.content
230
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py2neo/core.pyc in get(self, headers, redirect_limit, **kwargs)
271 kwargs.update(cache=True)
272 try:
--> 273 response = self.__base.get(headers=headers, redirect_limit=redirect_limit, **kwargs)
274 except (ClientError, ServerError) as error:
275 if error.status_code == UNAUTHORIZED:
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py2neo/packages/httpstream/http.pyc in get(self, if_modified_since, headers, redirect_limit, **kwargs)
964 object from which content can be read
965 """
--> 966 return self.__get_or_head("GET", if_modified_since, headers, redirect_limit, **kwargs)
967
968 def put(self, body=None, headers=None, **kwargs):
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py2neo/packages/httpstream/http.pyc in __get_or_head(self, method, if_modified_since, headers, redirect_limit, **kwargs)
941 headers["If-Modified-Since"] = formatdate(datetime_to_timestamp(if_modified_since), usegmt=True)
942 rq = Request(method, self.uri, None, headers)
--> 943 return rq.submit(redirect_limit=redirect_limit, **kwargs)
944
945 def head(self, if_modified_since=None, headers=None, redirect_limit=5, **kwargs):
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py2neo/packages/httpstream/http.pyc in submit(self, redirect_limit, **response_kwargs)
431 uri = self.uri
432 while True:
--> 433 http, rs = submit(self.method, uri, self.body, self.headers)
434 status_class = rs.status // 100
435 if status_class == 3:
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/py2neo/packages/httpstream/http.pyc in submit(method, uri, body, headers)
360 host_port=uri.host_port)
361 else:
--> 362 raise SocketError(code, description, host_port=uri.host_port)
363 else:
364 return http, response
SocketError: Connection refused
对于长错误消息感到抱歉，我非常感谢您的任何建议。
答案 0 :(得分：0)
问题已经解决。问题必须出在py2neo中的身份验证中。使用最新版本的py2neo（2.0.4），连接正确。