完美解决pip install scrapy,安装Scrapy错误:Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools
1,在Python3.6 安装Scrapy 出现以下报错

2,错误分析
红色报的错误指向的是Twisted
1,Twisted 没安装上
2,Twisted 没安装成功
3,Twisted 版本与Python的版本不适配
3,解决办法
下载与Python版本适配的Twisted离线安装
python各种封装包地址, 解决python多包问题 https://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml

4,离线安装
下载好离线安装包 ,把文件拖拽到上面写好 pip install 的命令行中回车运行,安装成功后再pip install scrapy即可


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