我们经常看到一些网站上很精彩的视频，想下载下来长期保存，但网站一般都设了限制，越来越难下载。下面我讲一下在KALI系统之下利用PYTHON库——you-get下载网页视频的方法。
一、接上一篇文章，先安装好PYTHON，然后打开终端，输入代码：sudo pip3 install you-get，回车，但安装失败，出现错误代码；
┌──(hero㉿kali)-[~/桌面]
└─$ sudo pip3 install you-get
[sudo] hero 的密码：
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)")': /simple/you-get/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)")': /simple/you-get/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<urllib3.connection.HTTPSConnection object at 0x7f7fe35a5df0>, 'Connection to pypi.org timed out. (connect timeout=15)')': /simple/you-get/二、解决以上安装错误的思路为换安装源，输入代码：sudo pip3 install you-get -i http://mirrors.aliyun.com/pypi/simple/ –trusted-host mirrors.aliyun.com，回车，输入密码，安装成功；
┌──(hero㉿kali)-[~/桌面]
└─$ sudo pip3 install you-get -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
[sudo] hero 的密码：
Looking in indexes: http://mirrors.aliyun.com/pypi/simple/
Collecting you-get
Downloading http://mirrors.aliyun.com/pypi/packages/a9/58/382ba8588318b1be53b2de34c136d81c04d2c997bd24c5e5c000d72f74f4/you_get-0.4.1545-py3-none-any.whl (228 kB)
|████████████████████████████████| 228 kB 3.4 MB/s
Installing collected packages: you-get
Successfully installed you-get-0.4.1545三、接下来就可以下载视频了，输入代码：you-get https://www.bilibili.com/video/BV1u44y1x7yq?spm_id_from=333.6.0.0，回车，视频下载后直接保存在桌面了。
┌──(hero㉿kali)-[~/桌面]
└─$ you-get https://www.bilibili.com/video/BV1u44y1x7yq?spm_id_from=333.6.0.0
site: Bilibili
title: 水友邮件诉苦毕业两年人生无望 周姐在线痛斥句句真实伤害
stream:
- format: flv
container: flv
quality: 高清 1080P
size: 33.7 MiB (35285590 bytes)
# download-with: you-get --format=flv [URL]
Downloading 水友邮件诉苦毕业两年人生无望 周姐在线痛斥句句真实伤害.flv ...
100% ( 33.7/ 33.7MB) ├██████████████████████████████████████████┤[1/1] 9 MB/s
Downloading 水友邮件诉苦毕业两年人生无望 周姐在线痛斥句句真实伤害.cmt.xml ...