Python提示：Consider using the `

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Python提示：Consider using the `

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：

F:\\python_workspace\\MyScrapy>pip install --upgrade pip Requirement already satisfied: pip in c:\\python3\\lib\\site-packages (20.3.3) Collecting pip Downloading pip-21.2.4-py3-none-any.whl (1.6 MB) |████████████████████████████████| 1.6 MB 819 kB/s Installing collected packages: pip Attempting uninstall: pip Found existing installation: pip 20.3.3 Uninstalling 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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