python通过递归将多维字典转化为二维

输入多维字典

person = {"male":{"name":"Shawn"}, "female":{"name":"Betty","age":[{"aaaa":123},{"bbbb":234}]},"children":{"name":{"first_name":"李", "last_name":{"old":"明明","now":"铭"}},"age":4}}

方案1

拼接所有层级key

def dict_2dm_full(data_json,upperstr=''):
  for key in data_json.keys():
      if isinstance(data_json[key], dict):
          dict_2dm_full(data_json[key],upperstr+key+"_")
      else:
          key_list[upperstr+key]=data_json[key]
  return key_list

输出

{'male_name': 'Shawn', 'female_name': 'Betty', 'female_age': [{'aaaa': 123}, {'bbbb': 234}], 'children_name_first_name': '李', 'children_name_last_name_old': '明明', 'children_name_last_name_now': '铭', 'children_age': 4}

方案2

重名key拼接上层key

def dict_2dm_full_opt(data_json,upperstr=''):
  for key in data_json.keys():
      if isinstance(data_json[key], dict):
          dict_2dm_full_opt(data_json[key],upperstr+key+"_")
      else:
          _key = key
          if key in key_list:
              _key = upperstr+ _key
          key_list[_key]=data_json[key]
  return key_list

输出

{'name': 'Shawn', 'female_name': 'Betty', 'age': [{'aaaa': 123}, {'bbbb': 234}], 'first_name': '李', 'old': '明明', 'now': '铭', 'children_age': 4}

方案3

重名key覆盖

def dict_2dm_min(data_json):
  for key in data_json.keys():
      if isinstance(data_json[key], dict):
          dict_2dm_min(data_json[key])
      else:
          key_list[key]=data_json[key]
  return key_list

输出

{'name': 'Betty', 'age': 4, 'first_name': '李', 'old': '明明', 'now': '铭'}