问JsonResponse在Django视图中返回不可序列化的错误

EN

    if request.method == 'POST':
        ... SOME CODE HERE ....
    elif request.method == 'GET' and request.is_ajax():
        df = pd.read_csv(project.base_file,  encoding='ISO-8859-1')
        cols = df.keys
        return JsonResponse({'features': cols, }, status=200)
    else:
        form = mForm(project_id=pk)

  $(document).ready(function(){
    var id_number =$("#projectID").text();
        
    $("#btnSelect").click(function(){
        $.ajax({
            url: '',
            method: 'GET',
            data: {
                project_id: id_number,
            },
            success: function(response){
                $("#id_features").text(response.features)
            }
        });
    });
  });