安装python pip install

安装Python第三方库使用pip install命令。 通过在命令行中输入"pip install 库名"即可安装指定的库。如果出现报错，可能是由于网速不佳，可以尝试切换到国内的镜像源进行安装。 使用命令"python -3 -m pip install 库名 -i 镜像源地址 --trusted-host 镜像源地址"，其中镜像源地址可以使用国内的镜像源，如豆瓣镜像源" http://pypi.douban.com/simple/". 这样就可以修改默认的下载路径并安装库了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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