python3爬虫下载有固定链接的视频

通过网页分析我们找到视频的链接地址，找到后，用程序来进行爬取，只不过经测试，爬取大视频时下载比较慢，下面是代码实现

import requests
 
print("开始下载")
url = 'http://www.baidu.com/video/01.mp4'
r = requests.get(url, stream=True)
 
with open('test.mp4', "wb") as mp4:
    for chunk in r.iter_content(chunk_size=1024 * 1024):
        if chunk:
            mp4.write(chunk)
 
print("下载结束")