解决下载scarpy问题

解决问题:
                 You are using pip version 9.0.1, however version 9.0.3 is available.
                 You should consider upgrading via the 'python -m pip install --upgrade pip' command.
                 -------------------------------------------------------------------------------------------------------------------- 
解决方法:
    python -m pip install --upgrade pip

解决问题:
                  error:?Microsoft?Visual?C++?14.0?is?required.?Get?it?with?"Microsoft?Visual?C+    +?Build?Tools":?                                            http://landinghub.visualstudio.com/visual-cpp-build-tools
                   --------------------------------------------------------------------------------------------------------------------
解决方法:
    pip install C:\Users\CR\Downloads\Twisted?17.9.0?cp36?cp36m?win_amd64.whl

解决问题:
                1.下载scrapy的whl包:
                          下载地址:http://www.lfd.uci.edu/~gohlke/pythonlibs/
                          寻找:Scrapy?1.3.3?py2.py3?none?any.whl
               2. scrapy依赖twiste,同样使用whl格式的包进行安装
                        下载地址:http://www.lfd.uci.edu/~gohlke/pythonlibs/
                        寻找:Twisted?17.1.0?cp36?cp36m?win_amd64.whl
最后:
    pip install scrapy
    验证:scrapy -h

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转载自blog.csdn.net/ccclych1/article/details/83507315
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