调用Custom Vision API时，在Python中获取KeyError：'Endpoint‘错误

import requests

# 设置Custom Vision API的终端地址
endpoint = 'https://customvision.ai'

# 其他必要参数
subscription_key = 'your_subscription_key'
project_id = 'your_project_id'
image_url = 'your_image_url'

# 构建请求URL
url = f'{endpoint}/v3.0/prediction/{project_id}/classify/iterations/default/url'

# 设置请求头
headers = {
    'Prediction-Key': subscription_key,
    'Content-Type': 'application/json'
}

# 设置请求体
data = {
    'url': image_url
}

# 发送POST请求
response = requests.post(url, headers=headers, json=data)

# 处理响应
if response.status_code == 200:
    result = response.json()
    # 处理预测结果
else:
    print('请求失败')

pip install requests