windows10下python3.7安装scrapy

安装

pyhon是安装的3.7版本，如下：

H:\>python --version
Python 3.7.1

H:\r>pip install scrapy

报错如下

error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools

----------------------------------------
Command "c:\users\administrator\appdata\local\programs\python\python37\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\pip-install-ga4lkol0\\Twisted\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record C:\Users\ADMINI~1\AppData\Local\Temp\pip-record-71_osoap\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in C:\Users\ADMINI~1\AppData\Local\Temp\pip-install-ga4lkol0\Twisted\

解决办法

一：去官网下载Microsoft Visual C++ 14.0安装就好了

二：https://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted下载twisted对应版本的whl文件Twisted-18.9.0-cp37-cp37m-win_amd64.whl（cp后面是python版本，amd64代表64位，运行）

官网下载太慢了，大家可以从百度网盘搜索下载，下载完成后，执行如下命令：

pip install F:\Twisted-18.7.0-cp37-cp37m-win_amd64.whl

提示如下，则安装成功

Installing collected packages: Twisted
Successfully installed Twisted-18.7.0

然后在安装Scrapy，命令如下：

pip install Scrapy

如下提示，则安装成功

Installing collected packages: Scrapy
Successfully installed Scrapy-1.5.1