【整理】Mac下pip升级Scrapy版本

在terminal里面看到scrapy的版本是1.0.3，为了升级到最新版本，可以采用一行命令即可。

sudo pip install --upgrade scrapy

安装完成之后，查看版本：

☁  Code  scrapy --version
Scrapy 1.3.0 - no active project

Usage:
  scrapy <command> [options] [args]

Available commands:
  bench         Run quick benchmark test
  commands
  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 <command> -h" to see more info about a command

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