加載模式時，Apache Avro陣列中的記錄陣列在Python中失敗（「不可疊加類型，字典」）

Question

全部， 我有幸運用一組記錄創建Apache Avro架構，但是當我嘗試製作一個數組記錄，python模式解析器失敗。我做錯了什麼，或者這是一個錯誤？

{ 
    "type": "record", 
    "name": "userInfo", 
    "namespace": "my.example", 
    "fields": [ 
     { 
      "name": "ID", 
      "type": "string", 
      "default": "NONE" 
     }, 
     { 
      "name": "message_timestamp", 
      "type": "long" 
     }, 
     { 
      "name": "location", 
      "type": [ 
       "null", 
       "string" 
      ], 
      "default": "NONE" 
     }, 
     { 
      "name": "AttributeMapping0", 
      "type": { 
       "type": "array", 
       "items": [ 
        { 
         "name": "timestamp", 
         "type": "long" 
        }, 
        { 
         "name": "AttributeMapping1", 
         "type": { 
          "type": "array", 
          "items": [ 
           { 
            "name": "AttributeMapping2", 
            "type": "record", 
            "fields": [ 
             { 
              "name": "Name", 
              "type": "string" 
             }, 
             { 
              "name": "Value", 
              "type": "long" 
             } 
            ] 
           } 
          ] 
         } 
        } 
       ] 
      } 
     } 
    ] 
} 

的錯誤信息是非常長的 - 對不起：

 File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1283, in Parse 
    return SchemaFromJSONData(json_data, names) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1254, in SchemaFromJSONData 
    return parser(json_data, names=names) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1182, in _SchemaFromJSONObject 
    other_props=other_props, 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1061, in __init__ 
    fields = make_fields(names=nested_names) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1173, in MakeFields 
    return tuple(RecordSchema._MakeFieldList(field_desc_list, names)) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 986, in _MakeFieldList 
    yield RecordSchema._MakeField(index, field_desc, names) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 957, in _MakeField 
    names=names, 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1254, in SchemaFromJSONData 
    return parser(json_data, names=names) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1197, in _SchemaFromJSONObject 
    items=SchemaFromJSONData(items_desc, names), 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1254, in SchemaFromJSONData 
    return parser(json_data, names=names) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1142, in _SchemaFromJSONArray 
    return UnionSchema(map(MakeSchema, json_array)) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 866, in __init__ 
    self._schemas = tuple(schemas) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1141, in MakeSchema 
    return SchemaFromJSONData(json_data=desc, names=names) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1254, in SchemaFromJSONData 
    return parser(json_data, names=names) 
    File "/usr/local/lib/python3.4/dist-packages/avro_python3-1.8.0-py3.4.egg/avro/schema.py", line 1154, in _SchemaFromJSONObject 
    if type in PRIMITIVE_TYPES: 
TypeError: unhashable type: 'dict' 

任何指導，將不勝感激。謝謝。

Answer 1

好了，說實話我還是爲什麼上面模式失敗不是特別確定，但這個答案我一直在尋找是爲：How to define avro schema for complex json document?

這裏這樣的回答顯示瞭如何有記錄數組的數組。就我個人的需要而言。