title: Python Scrapy - Direct spider to specific Pipeline
body: <p>I have a Scrapy project with multiple spiders along with multiple pipelines. Is there a way I can tell Spider A to use pipeline A, etc???</p>
  
  <p>My pipelines.py has multiple pipeline classes each doing something different and I want to be able to tell a spider to use a specific pipeline.</p>
  
  <p>I do not see any obvious ways looking at the available scrapy commands to do this...</p>