ImportError: cannot import name 'NodeSelector' from 'py2neo' py2neo V3有 NodeSelector这个函数, py2neoV4没有该函数了!换成NodeMatcher这个了 问题: "MATCH (_:User) WHERE _.userid = {1} RETURN _" 解决方案 db.match("_:User", "_.userid=userid").first()
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