title: The way to import modules into scrapy spiders once?
body: <p>every time I adding a new spider.py to scrapy, I need to import some modules, for example:</p>
  
  <pre><code>from __future__ import division
  from extruct.w3cmicrodata import MicrodataExtractor
  from extruct.jsonld import JsonLdExtractor
  import scrapy
  import re
  import logging
  from pprint import pprint
  from scrapy.exceptions import DropItem
  from urlparse import urlparse
  import tldextract
  import json
  ....
  </code></pre>
  
  <p>It's very boring that add these modules every time.</p>
  
  <p>I'm new to python, Is there a way to import these things once then don't need to import them for each spider file? Just like php.</p>