scrapy 设置系统路径,优先使用项目下的包

import os

import scrapy
BASE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
import sys

BOT_NAME = 'project_spider'
sys.path.insert(0, BASE_DIR)
sys.path.insert(0, os.path.join(BASE_DIR, BOT_NAME))