Python提示：Consider using the `--user` option or check the permissions.

问题描述:今天尝试搭建Python 爬虫框架(Scrapy),首先更新pip 版本管理器版本，执行如下指令：

pip install --upgrade pip

得到如下错误信息：

F:\python_workspace\MyScrapy>pip install --upgrade pip
Requirement already satisfied: pip in c:\python3\lib\site-packages (20.3.3)
Collecting pipDownloading pip-21.2.4-py3-none-any.whl (1.6 MB)|████████████████████████████████| 1.6 MB 819 kB/s
Installing collected packages: pipAttempting uninstall: pipFound existing installation: pip 20.3.3Uninstalling pip-20.3.3:Successfully uninstalled pip-20.3.3
ERROR: Could not install packages due to an EnvironmentError: [WinError 5] 拒绝访问。: 'C:\\Users\\zzg\\AppData\\Local\\Temp\\pip-uninstall-u4t4npkt\\pip.exe'
Consider using the `--user` option or check the permissions.

报错的大致含义:没有执行安装包的权限，可以在指令中添加--user 参数或者检查本地文件夹的相关权限设置。

修改后代码执行：

pip install --user --upgrade pip

执行结果：

F:\python_workspace\MyScrapy>pip install --user --upgrade pip
Requirement already satisfied: pip in c:\python3\lib\site-packages (21.2.4)

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