如果我使用selector.select按时间戳选择历史帖子＆amp;然后尝试与历史帖子创建一个新的标记关系，结果发现历史帖子实际上没有被标记！但是，在我的图表和图表中会出现一个灰色的圆圈，其中包含与历史帖子相同的信息。最终被标记而不是历史性的帖子...为什么是＆amp;更重要的是 - 我如何实际标记历史性帖子？
>>> import py2neo
>>> from py2neo import Graph, Node, Relationship
>>> from pandas import DataFrame
>>> graph = Graph(user='neo4j', password='notmypassword')
>>> t = Node("Tag", name="ANOTHER_TAG")
>>> graph.merge(t) # put the Tag into the graph
>>> selected = selector.select("Post", timestamp=1505826314)
>>> list(selected)
>>> [(deefe72:Post {date:"2017-09-19",id:"e0f08d21-afeb-49b7-b841-c6c366d11b62",text:"30 years in the building trade have injured my back & my joints",timestamp:1505826314,title:"building is bad for my back"})]
>>> rel=Relationship(t, "TAGGED", selected)
>>> graph.create(rel)
答案 0 :(得分：0)
Gaaargghh !!!
selected = selector.select（＆＃34; Post＆＃34;，timestamp = 1505826314）.first（）
而不是
selected = selector.select（＆＃34; Post＆＃34;，timestamp = 1505826314）