title: Why my scrapy response body is empty?
body: <p>I'm learning scrapy recently. And I tried use its simplist way to fetch a response body, but I got an empty string.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>&gt;&gt;&gt; from scrapy.http import Response
  &gt;&gt;&gt; r = Response('http://zenofpython.blog.163.com/blog/static/23531705420146124552782')
  &gt;&gt;&gt; r.body
  ''
  &gt;&gt;&gt; r.headers
  {}
  &gt;&gt;&gt; r.status
  200
  </code></pre>
  
  <p>And with no difficulty, I can visit the url I used above for scrapy Response through browser.It has rich content.</p>
  
  <p>What mistake I've made here?</p>