PS C:\Users\ > pip install pip
Defaulting to user installation because normal site-packages is not writeable
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
#win10:Windows powershell
#2022/8/17
#users:fanch
这次准备用pip安装一下you-get这个包，出现上面报错：
报错内容一：
Defaulting to user installation because normal site-packages is not writeable
这里提示我们包无法正常读入，没有书写权限
报错内容二：
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
这里提示我们缺少openssl模块
下面我们分别来解决这两个问题：
part1：
首先进入 E:\anaconda\Lib\site-packages 这个指定位置，修改用户的读写权限
—————————–（在这之前，还应当把这几条路径加入环境变量）———————————-
已添加则忽略该部分
右击此电脑>高级系统设置>高级>环境变量>添加环境变量
———————————————————————————————————————————
修改了文件夹的读写权限之后，报错内容为
part2：
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
PS C:\Users\fanch> pip install you-get
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/you-get/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/you-get/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/you-get/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/you-get/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/you-get/
Could not fetch URL https://pypi.org/simple/you-get/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/you-get/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
ERROR: Could not find a version that satisfies the requirement you-get (from versions: none)
ERROR: No matching distribution found for you-get
即缺少了SSL模块，进入
Win32/Win64 OpenSSL Installer for Windows – Shining Light Productions
https://slproweb.com/products/Win32OpenSSL.html
选择 Win64 OpenSSL v1.1.1q Light 的 MSI进行下载点击安装即可
这之后 you-get命令还是不能使用，一方面你需要返回第一步，改写相关的几个文件夹Lib和script的读写权限，另一方面需要删除 e:\anaconda\lib\site-packages下原有的安装文件
PS C:\Users\> pip install you-get
Requirement already satisfied: you-get in e:\anaconda\lib\site-packages (0.4.1620)
PS C:\Users\> you-get
you-get : The term 'you-get' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of t
he name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ you-get
+ ~~~~~~~
+ CategoryInfo : ObjectNotFound: (you-get:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
然后重新运行pip install you-get 命令就可以正常使用了
PS C:\Users\> pip install you-get
Collecting you-get
Using cached you_get-0.4.1620-py3-none-any.whl (230 kB)
Installing collected packages: you-get
Successfully installed you-get-0.4.1620
PS C:\Users\> you-get.exe
usage: you-get [OPTION]... URL...
A tiny downloader that scrapes the web
optional arguments:
-V, --version Print version and exit
-h, --help Print this help message and exit
......
