安装scrapy时出错？

Question

我使用python 3.6，当我尝试在cmd上使用pip安装scrapy时输出如下所示：

     Command ""c:program filespython36python.exe" -u -c "import 
     setuptools, 
     tokenize;__file__='C:\Users\Sarah\AppData\Local\Temp\pip-build-
     hql11prt\Twisted\setup.py';f=getattr(tokenize, 'open', open)
     (__file__);code=f.read().replace('
', 
     '
');f.close();exec(compile(code, __file__, 'exec'))" install --record 
     C:UsersSarahAppDataLocalTemppip-b2cmfpf2-recordinstall-
     record.txt --single-version-externally-managed --compile" failed with 
     error code 1 in C:UsersSarahAppDataLocalTemppip-build-
     hql11prtTwisted

我怎么解决这个问题？