title: Extract image using Newspaper from HTML
body: <p>I can't download articles like one usually does to instantiate the Article object, like below:</p>
  <pre><code>from newspaper import Article
  url = 'http://fox13now.com/2013/12/30/new-year-new-laws-obamacare-pot-guns-and-drones/'
  article = Article(url)
  article.download()
  article.top_image
  </code></pre>
  <p>However, I can get the HTML from a request. Can I use this raw HTML and pass it somehow to Newspaper to extract the image from it? (below is an attempt, but doesn't work). Thanks</p>
  <pre><code>from newspaper import Article
  import requests
  url = 'http://fox13now.com/2013/12/30/new-year-new-laws-obamacare-pot-guns-and-drones/'
  raw_html= requests.get(url, verify=False, proxies=proxy)
  article = Article('')
  article.set_html(raw_html)
  article.top_image
  </code></pre>