Scrapy：導入錯誤：無法導入名稱設置

Question

from scrapy import project, signals 
from scrapy.crawler import Settings 
from scrapy.crawler import CrawlerProcess 
from scrapy.xlib.pydispatch import dispatcher 
from multiprocessing.queues import Queue 
import multiprocessing 

class CrawlerWorker(multiprocessing.Process): 

    def __init__(self, spider, result_queue): 
     multiprocessing.Process.__init__(self) 
     self.result_queue = result_queue 

     self.crawler = Crawler(Settings()) 
     if not hasattr(project, 'crawler'): 
      self.crawler.install() 
     self.crawler.configure() 

     self.items = [] 
     self.spider = spider 
     dispatcher.connect(self._item_passed, signals.item_passed) 

    def _item_passed(self, item): 
     self.items.append(item) 

    def run(self): 
     self.crawler.crawl(self.spider) 
     self.crawler.start() 
     self.crawler.stop() 
     self.result_queue.put(self.items) 

嘗試從scrapy.conf.settings只使用CrawlerProcess（設置）我得到一個錯誤，它看起來像有之間的scrapy醫生說這裏什麼http://doc.scrapy.org/en/latest/topics/practices.html

的差異

我正在遵循一個較舊的scrapy版本，我正在試圖使它與0.16的scrapy一起工作。

這是運行python腳本後的錯誤。

Traceback (most recent call last): 
    File "server.py", line 5, in <module> 
    from scraper import Scraper 
    File "/home/me/spider/spider/scraper.py", line 6, in <module> 
    from crawlerworker import CrawlerWorker 
    File "/home/me/spider/spider/crawlerworker.py", line 2, in <module> 
    from scrapy.crawler import Settings 
ImportError: cannot import name Settings 

Answer 1

嘗試：

from scrapy.settings import Settings