Django 按映射键筛选嵌套列表

我有一张下面的清单。我想使用“映射”键筛选此数据

我想得到的数据只有map=1这样

  [
     {  
        "model": "map.mapreferencepoints",
        "pk": 4,
        "fields": {"map": 1, "referenceName": "RF2", "corX": 1017, "corY": 377}
     }
  ]

如何以这种方式按映射键过滤数据

my_list = [
        { 
          "model": "map.mapreferencepoints", 
          "pk": 3,
          "fields": {"map": 2, "referenceName": "RF1", "corX": 906, "corY": 377}},
        {
          "model": "map.mapreferencepoints",
          "pk": 4,
          "fields": {"map": 1, "referenceName": "RF2", "corX": 1017, "corY": 377}},
        {
          "model": "map.mapreferencepoints",
          "pk": 5,
          "fields": {"map": 2, "referenceName": "RF3", "corX": 1171, "corY": 377}}
    ]

filtered_list = [i for i in my_list if i["fields"]["map"] == 1]

my_list = [
        { 
          "model": "map.mapreferencepoints", 
          "pk": 3,
          "fields": {"map": 2, "referenceName": "RF1", "corX": 906, "corY": 377}},
        {
          "model": "map.mapreferencepoints",
          "pk": 4,
          "fields": {"map": 1, "referenceName": "RF2", "corX": 1017, "corY": 377}},
        {
          "model": "map.mapreferencepoints",
          "pk": 5,
          "fields": {"map": 2, "referenceName": "RF3", "corX": 1171, "corY": 377}}
    ]

filtered_list = [i for i in my_list if i["fields"]["map"] == 1]