如何从嵌套的json中提取键值对

def extract_key_value_pairs(json_data, prefix=''):
    pairs = []
    if isinstance(json_data, dict):
        for key, value in json_data.items():
            if isinstance(value, (dict, list)):
                pairs.extend(extract_key_value_pairs(value, prefix + key + '.'))
            else:
                pairs.append((prefix + key, value))
    elif isinstance(json_data, list):
        for index, item in enumerate(json_data):
            if isinstance(item, (dict, list)):
                pairs.extend(extract_key_value_pairs(item, prefix + str(index) + '.'))
            else:
                pairs.append((prefix + str(index), item))
    return pairs

{
  "name": "John",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "country": "USA"
  },
  "hobbies": ["reading", "sports"]
}

[
  ("name", "John"),
  ("age", 30),
  ("address.street", "123 Main St"),
  ("address.city", "New York"),
  ("address.country", "USA"),
  ("hobbies.0", "reading"),
  ("hobbies.1", "sports")
]