按照步骤安装requests（步骤参考历史文章）结果出现这个，折腾了几个小时，在看网上看到一个方法试了下果然可以
出现以上报错是因为requests库已经安装了，但为什么import requests时依然报错呢？
报错的原因不清楚，如果你也出现这种问题请看下面的操作
在Pycharm开发工具中按住art+enter，可以看到第一个选项提示“install requests”
点击该选项，然后安装
再次输入import requests就可以啦
对啦，还要看下python的scripts是否配置了环境变量。PATH里面输入scripts的路径
还要记得 安装setuptools 和pip啊 （历史文章中有）
希望对大家有用~
附：pycharm 2018.2.4 激活码
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