scrapy顺序执行多个爬虫

 # -*- coding:utf-8 -*-

 from scrapy import cmdline
 from scrapy.cmdline import execute
 import sys,time,os

 #会全部执行爬虫程序
 os.system('scrapy crawl ccdi')
 os.system('scrapy crawl ccxi')
 #-----------------------------------------------------

 #只会执行第一个
 cmdline.execute('scrapy crawl ccdi'.split())
 cmdline.execute('scrapy crawl ccxi'.split())
 #-----------------------------------------------------

 #只会执行第一个
 sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 execute(["scrapy", "crawl", "shanghaione"])
 time.sleep(30)  

 sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 execute(["scrapy", "crawl", "shanghaitwo"])