scrapy使用
1、安装:pip3 install scrapy
结果安装失败,由于Failed building wheel for Twisted;单独安装Twisted,下载了Twisted-16.6.0-cp35-cp35m-win_amd64.whl文件
pip3 install 目录\Twisted-16.6.0-cp35-cp35m-win_amd64.whl 安装成功,再次执行pip3 install scrapy
2、新建项目
cd 项目存在路径
scrapy startproject 项目名称
Module `scrapy.conf` is deprecated, use `crawler.settings` attribute instead from scrapy.conf import settings
from scrapy.conf import crawler.settings 修改为:from scrapy.settings import Settings
Module `scrapy.log` has been deprecated, Scrapy now relies on the builtin Python library for logging. Read the updated logging entry in the documentation to learn more.
如果scrapy crawl xxx运行爬虫后出现结果报错:
ImportError: cannot import name '_win32stdio'
ImportError: No module named 'win32api'
因为twisted需要安装依赖模块pywin32
pip install pypiwin32
Scrapy 'module' object has no attribute 'Spider'错误
在“Scrapy入门教程”中,在创建的“dmoz_spider.py”文件中是通过
import scrapy class DmozSpider(scrapy.Spider):
的方式导入。但是用这种方法会出现错误:
class DmozSpider(scrapy.Spider):
AttributeError: 'module' object has no attribute 'Spider'
需要换一种方式导入
from scrapy.spider import Spider class DmozSpider(Spider):
就可以啦!
pip源:http://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted
国内:https://pypi.doubanio.com/simple/
参考资料:
http://python.gotrained.com/scrapy-tutorial-web-scraping-craigslist/