要访问BlueSnap API并获取储存的购物者的名字和姓氏，您可以使用以下代码示例：

import requests
import json

url = "https://sandbox.bluesnap.com/services/2/vaulted-shoppers/{shopper_id}"
shopper_id = "your_shopper_id"
username = "your_username"
password = "your_password"

headers = {
    "Content-Type": "application/json",
    "Authorization": "Basic " + base64.b64encode((username + ":" + password).encode('utf-8')).decode('utf-8')
}

response = requests.get(url.format(shopper_id=shopper_id), headers=headers)
data = json.loads(response.text)

first_name = data.get("vaultedShopper").get("firstName")
last_name = data.get("vaultedShopper").get("lastName")

print("First Name:", first_name)
print("Last Name:", last_name)

请确保将your_shopper_id替换为您要获取信息的购物者的实际ID，并将your_username和your_password替换为您的BlueSnap账户的实际凭据。

此代码使用HTTP GET请求从BlueSnap API获取储存的购物者信息。它通过将用户名和密码编码为base64字符串，并在请求中包含Authorization标头来进行身份验证。然后，它解析响应并提取购物者的名字和姓氏，最后将其打印出来。