使用Python将json联系人列表发布到Qualtrics API，Content-Type出错

import requests
import json

# 构造请求头
headers = {
    "Content-Type": "application/json"
}

# 构造联系人列表数据
contact_list = [
    {
        "firstName": "John",
        "lastName": "Doe",
        "email": "john.doe@example.com"
    },
    {
        "firstName": "Jane",
        "lastName": "Smith",
        "email": "jane.smith@example.com"
    }
]

# 将联系人列表转换为JSON字符串
json_data = json.dumps(contact_list)

# 发送POST请求
response = requests.post("https://api.qualtrics.com/v3/contacts", headers=headers, data=json_data)

# 检查响应状态码
if response.status_code == 200:
    print("联系人列表发布成功")
else:
    print("联系人列表发布失败")

# 打印响应内容
print(response.text)