Django：从视图中返回Json并将值解析为d3.js

Question

/ anomaly / graphTest是在views.py中调用我的get_graph方法的url我无法从我的方法中获取json以返回到我的d3.json函数。我怎样才能做到这一点？我尝试做的是与https://github.com/neo4j-examples/movies-python-bolt类似的东西，使用d3.json在图形上显示内容。是因为python版本不同导致我的应用程序与代码示例的工作方式不同？我还打印出了graph [0]的值。它表明graph [0]未定义。

views.py

def get_graph(request):
    db = get_db()
    results = db.run("MATCH (m:Movie)<-[:ACTED_IN]-(a:Person) "
         "RETURN m.title as movie, collect(a.name) as cast ")
    nodes = []
    rels = []
    i = 0
    for record in results:
        nodes.append({"title": record["movie"], "label": "movie"})
        target = i
        i += 1
        for name in record['cast']:
            actor = {"title": name, "label": "actor"}
            try:
                source = nodes.index(actor)
            except ValueError:
                nodes.append(actor)
                source = i
                i += 1
            rels.append({"source": source, "target": target})
    return render(request, 'anomaly/index.html',{"nodes": nodes, "links": rels})

的index.html

<script type="text/javascript">
    var width = 800, height = 800;

    var force = d3.layout.force()
        .charge(-200).linkDistance(30).size([width, height]);

    var svg = d3.select("#graph").append("svg")
        .attr("width", "100%").attr("height", "100%")
        .attr("pointer-events", "all");

    d3.json("/anomaly/graphTEST", function(error, graph) {

        if (error) return;

        force.nodes(graph.nodes).links(graph.links).start();

        var link = svg.selectAll(".link")
            .data(graph.links).enter()
            .append("line").attr("class", "link");

        var node = svg.selectAll(".node")
            .data(graph.nodes).enter()
            .append("circle")
            .attr("class", function (d) { return "node "+d.label })
            .attr("r", 10)
            .call(force.drag);

        // html title attribute
        node.append("title")
            .text(function (d) { return d.title; })

        // force feed algo ticks
        force.on("tick", function() {
            link.attr("x1", function(d) { return d.source.x; })
                .attr("y1", function(d) { return d.source.y; })
                .attr("x2", function(d) { return d.target.x; })
                .attr("y2", function(d) { return d.target.y; });

            node.attr("cx", function(d) { return d.x; })
                .attr("cy", function(d) { return d.y; });
        });
    });
</script>    

调用get_graph方法时返回的Json示例

{"nodes": [{"title": "Apollo 13", "label": "movie"}, {"title": "Tom Hanks", "label": "actor"}, {"title": "Kevin Bacon", "label": "actor"}

更新1： 我目前能够检索数据并成功解析到我的javascript函数，但是当我在javascript函数中打印该值时，它会显示我奇怪的符号，我并不期待。

javascript怪异的json

[{'title': 'Apollo 13', 'label': 'movie'}, {'title': 'Tom Hanks', 'label': 'actor'}, {'title': 'Kevin Bacon', 'label': 'actor'},