use py2neo with Neo4j3.0.1 in windows

[luozhen...@gmail.com]

I have a problem in connecting the DB with py2neo,the ERROR display is 

>>> from py2neo import Graph

>>> graph=Graph()

Traceback (most recent call last):

  File "<pyshell#18>", line 1, in <module>

    graph=Graph()

  File "C:\Python27\lib\site-packages\py2neo\database\__init__.py", line 327, in __new__

    use_bolt = version_tuple(inst.__remote__.get().content["neo4j_version"]) >= (3,)

  File "C:\Python27\lib\site-packages\py2neo\database\http.py", line 157, in get

    raise Unauthorized(self.uri.string)

Unauthorized: http://localhost:7474/db/data/

>>>