import requests

# 目标 URL
url = 'http://127.0.0.1:8000/polls/roll_call/'


data = {
    'start_roll_call': 'true'
}

response = requests.post(url, json=data)


if response.status_code == 200:
    try:
        print("点名成功:", response.json())
    except ValueError:
        print("响应不是有效的 JSON:", response.text)
else:
    print("点名失败:", response.status_code, response.text)