对比两个json对象差异，常见的第三方对比库deepdiff、json_tools、jsonpatch都能够满足我们的需求。

  用法：

• deepdiff

  from deepdiff import DeepDiff
  
  a = {"name": "yanan", "pro": {"sh": "shandong", "city": ["zibo", "weifang"]}}
  b = {"name": "Yanan", "pro": {"sh": "shandong", "town": ["taian", "weifang"]}}
  
  result = DeepDiff(a, b)
  
  print(result)
  

  {'dictionary_item_added': [root['pro']['town']], 'dictionary_item_removed': [root['pro']['city']], 'values_changed': {"root['name']": {'new_value': 'Yanan', 'old_value': 'yanan'}}}
  

• json_tools

  import json_tools
  
  a = {"name": "yanan", "pro": {"sh": "shandong", "city": ["zibo", "weifang"]}}
  b = {"name": "Yanan", "pro": {"sh": "shandong", "town": ["taian", "weifang"]}}
  
  result = json_tools.diff(a, b)
  
  print(result)
  

  [{'replace': '/name', 'value': 'Yanan', 'prev': 'yanan'}, {'remove': '/pro/city', 'prev': ['zibo', 'weifang']}, {'add': '/pro/town', 'value': ['taian', 'weifang']}]
  

• jsonpatch

  import jsonpatch
  
  a = {"name": "yanan", "pro": {"sh": "shandong", "city": ["zibo", "weifang"]}}
  b = {"name": "Yanan", "pro": {"sh": "shandong", "town": ["taian", "weifang"]}}
  
  result = jsonpatch.JsonPatch.from_diff(a, b)
  print(result)
  

  输出结果：

  [{"op": "remove", "path": "/pro/city"}, {"op": "add", "path": "/pro/town", "value": ["taian", "weifang"]}, {"op": "replace", "path": "/name", "value": "Yanan"}]
  

  但无论哪种方法，都不方便我们根据对比结果，进行修改原始数据。