Windows下安装Scrapy

使用版本：Python 3.7.6

所需文件：

lxml-4.5.0-cp37-cp37m-win_amd64.whl

pywin32-227-cp37-cp37m-win_amd64.whl

Twisted-19.10.0-cp37-cp37m-win_amd64.whl

这三个文件都可以直接百度搜索下载，cp37表示python版本是3.7,

1、使用Win+r，然后输入CMD，进入DOS窗口，

2、更新pip，命令：python -m pip --default-timeout=100 install --upgrade pip

3、安装wheel：pip install wheel

3、然后切换到已经下载了所需文件的目录，使用pip install xxxxxx 安装lxml、pywin32、Twisted

4、安装Scrapy：pip install scrapy，

安装期间遇到问题

pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files .pythonhosted.org', port=443): Read timed out.

查询后发现是pip下载超时问题，修改为：pip install --default-timeout=1000 scrapy

5、检测是否安装成功：dos窗口输入scrapy

C:\Users\Administrator>scrapy
Scrapy 1.8.0 - no active project

Usage:
  scrapy  [options] [args]

Available commands:
  bench         Run quick benchmark test
  fetch         Fetch a URL using the Scrapy downloader
  genspider     Generate new spider using pre-defined templates
  runspider     Run a self-contained spider (without creating a project)
  settings      Get settings values
  shell         Interactive scraping console
  startproject  Create new project
  version       Print Scrapy version
  view          Open URL in browser, as seen by Scrapy

  [ more ]      More commands available when run from project directory

Use "scrapy  -h" to see more info about a command