Scrapy安装出错：error: Unable to find vcvarsall.bat的解决方法

安装Scrapy过程中出错：error: Unable to find vcvarsall.bat

Python版本2.7.11

系统为win7 32位系统

使用

pip install scrapy

然后报错

\test    copying twisted\mail\test\server.pem -> build\lib.win32-2.7\twisted\mail\test    copying twisted\manhole\ui\gtk2manhole.glade -> build\lib.win32-2.7\twisted\manhole\ui    copying twisted\spread\ui\login2.glade -> build\lib.win32-2.7\twisted\spread\ui    copying twisted\words\im\instancemessenger.glade -> build\lib.win32-2.7\twisted\words\im    copying twisted\words\xish\xpathparser.g -> build\lib.win32-2.7\twisted\words\xish    running build_ext    error: Unable to find vcvarsall.bat    ----------------------------------------Command "d:\python27\python.exe -u -c "import setuptools, tokenize;__file__='c:\\users\\admini~1\\appdata\\local\\temp\\pip-build-lo9klh\\twisted\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record c:\users\admini~1\appdata\local\temp\pip-ket9au-record\install-record.txt --single-version-externally-managed --compile"failed with error code 1 in c:\users\admini~1\appdata\local\temp\pip-build-lo9klh\twisted\

然后就开始各种搜索

结果出来的也是五花八门

有的说需要下载https://www.microsoft.com/en-us/download/details.aspx?id=44266

我安装后依旧提示错误

之后参考http://www.crifan.com/while_install_scrapy_error_unable_to_find_vcvarsall_bat/这篇文章解决

下载安装twisted

twisted的下载地址：

http://tmrc.mit.edu/mirror/twisted/Twisted/10.2/Twisted-10.2.0.winxp32-py2.7.msi

然后安装

再次执行pip install scrapy

显示成功

然后创建一个项目

scrapy startproject demo