因对python的爬虫技术比较感兴趣,所以想捣鼓下。
网上浏览了下,发现scrapy爬虫框架用的挺多的,所以自己也安装下,安装后执行scrapy时,提示command not found。
环境说明:
mac catalina 系统
python环境为3.7版本
pip3的版本:19.1.3
操作步骤:
1、pip3 install Scrapy (安装成功,无报错日志信息)
2、执行 scrapy ,返回提示信息 command not found
经网上搜寻资料发现,需要创建软连接:
本机python3.7的安装路径为:/Library/Frameworks/Python.framework/Versions/3.7/bin/scrapy
解决方案为:
执行:ln -s /Library/Frameworks/Python.framework/Versions/3.7/bin/scrapy /usr/local/bin/scrapy
上述命令执行后在命令行输入:scrapy,返回信息如下:
Scrapy 1.7.4 - no active project
Usage:
scrapy <command> [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 <command> -h" to see more info about a command
image.png至此解决问题。
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